A Concise history of search engine notes

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A Concise history of search engine notes #e#

2006 Low, received a friend commissioned to help organize the development of search engine history, so during the spring Festival spent a little time to sort out a rough history. Consider yourself a little note about internet history.

1, the development of the search engine history

1 Brief History of searches history of search

Origin "Aceh"

The history of Web search engines can be traced back to 1991 years. The first search engine was the "Aceh" (Archie) developed by McGill University (McGill University). "Aceh" allows keyword searches of file names on a Web site.

The advent of the 1992 "Gopher" (the pioneer of the World Wide Web) brought the birth of the "Veronica" (Veronica) search engine (poulter,1997), which allows for multiple word retrieval and Boolean retrieval (that is, it can be searched using operators such as and and OR). Despite these early advances, 1994 years is really a watershed in the development of the Internet, not only because the World Wide Web began to become popular this year, but also because in the year the emergence of two projects, and later were treated as free services to the public open-they jointly changed the course of internet development.

By 1994, two types of search services--keyword search and topic directories--have emerged today (poutler,1997). The first successful full-text keyword search engine "web crawler" (WebCrawler) was also born, and developed into one of the most successful early "cyber bots" (Web Robot) (Note 2: In essence, cyber bots are a constant process of cruising on the web, It goes with the connection to find the page and its own monthly page. Each page is found, it is copied to the database, so that people can use the keyword to find it. ）。 Technological advances in the search for information on the Internet have been widely welcomed. Brain Ping (Brian Pinkerton) 's "web crawler" quickly led to the emergence of now more famous search engines such as Lycos and AltaVista.

In January 1994, the first searchable and browsable category Einet Galaxy (Tradewave Galaxy) is online and supports Gopher and Telnet searches in addition to web search.

Yahoo appears

This April 1, Stanford (Stanford) University's two doctoral students, David Filo and Chinese-American Jerry Yang (Gerry) co-founded the Super Directory index Yahoo, and successfully made the concept of search engine deeply rooted. From then on the search engine entered the high-speed development period. Stanford two doctoral students, Chinese-American Jerry Yang and David Filo co-founded Yahoo. With the number of visits and links increased, the Yahoo directory began to support a simple database search. Because Yahoo! 's data is manually typed, it can't really be classified as a search engine, but it's actually just a searchable directory. But the advent of Yahoo makes classified search into the search engine's vision, due to the obvious improvement in search efficiency, very popular. Yahoo after the adoption of AltaVista, Inktomi, Google to provide search engine services, is a search engine development in many of the main technology tracker and the implementation, so its existence for the search engine is very meaningful, because it is not the subject of this article, so do not repeat.

Full-Text Search

April 20, 1994, WebCrawler official debut. WebCrawler is the first Full-text search engine on the Internet to support all the text of the search file, and then WebCrawler is being bought by AOL and Excite, and now it is the same as excite instead of meta search engine dogpile. Since then Full-text search has become the function of most search engines.

The search engine of modern meaning

Lycos, known as the earliest modern search engine, appeared in July 1994. Michael Mauldin The spider program of John Leavitt into its indexing program, creating the Lycos that everyone knows now. Lycos (Carnegie Mellon University Center for Machine translation, announces Lycos) is another important advance in search engine history. Michael Mauldin of Carnegie Mellon University The Leavitt program of John Spider into its indexing program, creating Lycos. July 20, 1994, the data volume of 54,000 Lycos officially released. In addition to the correlation sort, Lycos also provides prefix matching and character proximity restrictions, Lycos the first use of the Web page automatic summary in search results, and the biggest advantage is that it is far better than other search engine data: August 1994--394,000 Documents January 1995--1.5 Technologists documents;1996 November--over technologists documents. (Note: April 1999, Lycos stop their own spider, change from fast to provide search engine services)

#p # Search Engine history notes #e#

2006 Low, received a friend commissioned to help organize the development of search engine history, so during the spring Festival spent a little time to sort out a rough history. Consider yourself a little note about internet history.

1, the development of the search engine history

1 Brief History of searches history of search

Origin "Aceh"

The history of Web search engines can be traced back to 1991 years. The first search engine was the "Aceh" (Archie) developed by McGill University (McGill University). "Aceh" allows keyword searches of file names on a Web site.

The advent of the 1992 "Gopher" (the pioneer of the World Wide Web) brought the birth of the "Veronica" (Veronica) search engine (poulter,1997), which allows for multiple word retrieval and Boolean retrieval (that is, it can be searched using operators such as and and OR). Despite these early advances, 1994 years is really a watershed in the development of the Internet, not only because the World Wide Web began to become popular this year, but also because in the year the emergence of two projects, and later were treated as free services to the public open-they jointly changed the course of internet development.

By 1994, two types of search services--keyword search and topic directories--have emerged today (poutler,1997). The first successful full-text keyword search engine "web crawler" (WebCrawler) was also born, and developed into one of the most successful early "cyber bots" (Web Robot) (Note 2: In essence, cyber bots are a constant process of cruising on the web, It goes with the connection to find the page and its own monthly page. Each page is found, it is copied to the database, so that people can use the keyword to find it. ）。 Technological advances in the search for information on the Internet have been widely welcomed. Brain Ping (Brian Pinkerton) 's "web crawler" quickly led to the emergence of now more famous search engines such as Lycos and AltaVista.

In January 1994, the first searchable and browsable category Einet Galaxy (Tradewave Galaxy) is online and supports Gopher and Telnet searches in addition to web search.

Yahoo appears

This April 1, Stanford (Stanford) University's two doctoral students, David Filo and Chinese-American Jerry Yang (Gerry) co-founded the Super Directory index Yahoo, and successfully made the concept of search engine deeply rooted. From then on the search engine entered the high-speed development period. Stanford two doctoral students, Chinese-American Jerry Yang and David Filo co-founded Yahoo. With the number of visits and links increased, the Yahoo directory began to support a simple database search. Because Yahoo! 's data is manually typed, it can't really be classified as a search engine, but it's actually just a searchable directory. But the advent of Yahoo makes classified search into the search engine's vision, due to the obvious improvement in search efficiency, very popular. Yahoo after the adoption of AltaVista, Inktomi, Google to provide search engine services, is a search engine development in many of the main technology tracker and the implementation, so its existence for the search engine is very meaningful, because it is not the subject of this article, so do not repeat.

Full-Text Search

April 20, 1994, WebCrawler official debut. WebCrawler is the first Full-text search engine on the Internet to support all the text of the search file, and then WebCrawler is being bought by AOL and Excite, and now it is the same as excite instead of meta search engine dogpile. Since then Full-text search has become the function of most search engines.

The search engine of modern meaning

Lycos, known as the earliest modern search engine, appeared in July 1994. Michael Mauldin The spider program of John Leavitt into its indexing program, creating the Lycos that everyone knows now. Lycos (Carnegie Mellon University Center for Machine translation, announces Lycos) is another important advance in search engine history. Michael Mauldin of Carnegie Mellon University The Leavitt program of John Spider into its indexing program, creating Lycos. July 20, 1994, the data volume of 54,000 Lycos officially released. In addition to the correlation sort, Lycos also provides prefix matching and character proximity restrictions, Lycos the first use of the Web page automatic summary in search results, and the biggest advantage is that it is far better than other search engine data: August 1994--394,000 Documents January 1995--1.5 Technologists documents;1996 November--over technologists documents. (Note: April 1999, Lycos stop their own spider, change from fast to provide search engine services)

#p # Search Engine history notes #e#

Innovations in user interfaces and additional services

Infoseek (Steve Kirsch announces free Demos of the Infoseek search Engine) is another important search engine, although the company claims January 1994 has been created, but until the end of its search engine to meet with the public. At first, InfoSeek was just an obscure search engine, which followed the concepts of Yahoo! and Lycos and did not have any unique innovations. But its history and subsequent acclaim attest that the first stage was not always important at first. InfoSeek friendly user interface, a large number of additional services (such as UPS tracking, News, directory A, and the like) to keep it standing. The December 1995 strategic Agreement with Netscape made it a strong search engine: When users clicked the Search button on Netscape's browser, they popped up the InfoSeek search service, which was previously provided by Yahoo!. (Note: InfoSeek was later known for its relevance, and in February 2001, InfoSeek stopped its search engine and started to switch to Overture search results)

Passable meta search engine

1995, a new search engine form emerged-meta search engine (a meta-search Engine Roundup). Users only need to submit a search request, the meta-search engine is responsible for conversion processing to submit to a number of pre-selected independent search engines, and will be returned from the independent search engine all the results of the query, centralized processing and then returned to the user. The first Meta search engine is the MetaCrawler of Washington University master Eric Selberg and Oren Etzioni. Meta search engine concept is good, but the search effect is always not ideal, so no meta search engine has a strong position.

The birth of the natural grammar

AltaVista Dec AltaVista (in the summer of 2001, some netizens need to access through the P-roxy, no P-roxy available Qbseach Radio AltaVista search, only show the first page search results) is a late, December 1995 Debut (AltaVista public Beta press release). However, a lot of innovative features make it quickly reach the peak of the search engine. AltaVista's most prominent advantage is its speed (search engine 9238: More funny, designed for altavista purposes, supposedly only to show the power of the DEC Alpha Chip's powerful computing power).

Other new features of AltaVista change the definition of the search engine forever. AltaVista is the first search engine to support natural language search, AltaVista is the first search engine to implement advanced search syntax (such as and, or, not, etc.). Users can search the content of newsgroups (newsgroups) and get articles from the Internet, search for text in the name of a picture, search titles, search Java applets, search for ActiveX objects, AltaVista. AltaVista also claims to be the first search engine to support users to submit or delete URLs to their web-indexed libraries, and to be able to get online within 24 hours. One of the most interesting new features of AltaVista is to search for all sites that have links to a URL. In the user-oriented interface, AltaVista has also made a great deal of innovation. It has placed "tips" in the search-box area to help users better express their search, and these tips are often updated so that after a few searches, users will see a lot of interesting features that they may never know about. This series of functions, gradually by other search engines widely used. In 1997, AltaVista released a graphical demo system Livetopics to help users find what they wanted from thousands of search results.

Personalized Search

September 26, 1995, the UC Berkeley CS assistant Eric Brewer, PhD student Paul Gauthier founded Inktomi (UC Berkeley announces Inktomi), May 20, 1996, Inktomi company was established, The mighty HotBot appeared before the world. Claiming to be able to crawl more than 10 million pages per day, so there are far more new content than other search engines. HotBot also uses cookies to store a user's personal search preferences. (HotBot was one of the most popular search engines in the next few years, after being Lycos acquired) although HotBot has not existed for a long time, the concept of "personalized search" is now a classic of search engine developers.

#p # Search Engine history notes #e#

Alexa

April 1996, Alexa appears, this is a client through the installation of software to collect the Web page of the engine, according to customer access and retention time to determine the value of a Web page to determine the order of its results. Its traffic rank model has become the basis of the value evaluation of the website to some extent. This is also a step forward in the way a lot of cookies are used to collect customer information. After years of precipitation, Alexa has to a certain extent become a site good or bad one of the criteria.

The database age of search engine

August 1997, Northernlight search engine officially appeared. It used to be one of the search engines with the largest database, it has no stop Words, it has excellent current News, a special Collection with more than 7,100 publications, a good advanced search syntax, and the first supports a simple automatic categorization of search results. (January 16, 2002, Northernlight public search engine closed, followed by divine acquisition, but in Nlresearch, selected the world Wide the Web only, still can use the Northernlight search engine) its appearance, Also indicates that the application of the database has become an inevitable trend of search engine development.

The appearance of Chinese search engine

Openfind was founded in January 1998, and its technology derives from the Gais laboratory led by Professor Wu Shen of the Chiang Kai-shek University in Taiwan. Openfind at first only to do Chinese search engine, has been the best Chinese search engine, at the same time for the three famous portals Sina, Kimo, Yahoo to provide Chinese search engine.

February 1998, the Chinese search engine "Sohu" came out, "go out by map, internet to find Sohu" began the Chinese Internet portal era.

2000, Baidu set up in China, is committed to doing the world's largest search engine, China's Google. And on the Nasdaq successfully listed, creating a Chinese Internet another myth.

Have to mention Google

Google identified September 27, 1998 as its birthday. Before October 1998, Google was just a small project at Stanford University BackRub. 1995 Ph. D. Larry Page began learning search engine design, registering the domain name of google.com on September 15, 1997, with the participation of Sergey Brin and Scott Hassan and Alan Steremberg in the end of 1997 Bachrub started providing demo. In February 1999, Google completed its transformation from alpha to beta. Google in PageRank, dynamic summary, Web snapshots, Dailyrefresh, multiple document format support, map stock dictionary search, and other features such as integration, multi-language support, user interface and other functions of innovation, like AltaVista, once again forever changed the definition of the search engine.

By the middle of 2000, Google was praised for its search accuracy, but because the database is not as big as other search engines and lacks advanced search syntax, the use value is not very high and it is not fast. Google did not soar until the database was upgraded in 2000 and Yahoo was chosen as a search engine.

December 2002, Google launched the commodity shopping search engine froogle. Users enter the name of the product you want to buy in the search box, and Google will return the information that is crawled from each shopping site/online store, including product pictures, product descriptions, prices, and links to the site. In addition, Google provides 14 categories of product Classification search, as well as a limited price or price range, such as advanced search capabilities.

The same year in June, Google officially launched Google AdSense Service, according to the content of the page to display the corresponding ads.

2005-2006, Google through a series of actions, to image search, map search, video Search and other fields have a breakthrough. It can be said that everything can be searched as a starting point.

January 2007 Google said it will launch a music video distribution service based on AdSense

#p # Search Engine history notes #e#

The era of paid service

August 2001, LookSmart integrates zeal.com and upgrades fee-based services. Non-commercial web sites are available for free via LookSmart's zeal.com, and commercial Web sites must be selected from basic submit, Express submit, or looklistings (non-commercial web sites can bear the costs, You can also select one of the items to log on to. In addition, LookSmart also introduced the "Express Modify" service, allowing a fee to quickly modify site information.

August 2001, LookSmart integrates zeal.com and upgrades fee-based services. Non-commercial web sites are available for free via LookSmart's zeal.com, and commercial Web sites must be selected from basic submit, Express submit, or looklistings (non-commercial web sites can bear the costs, You can also select one of the items to log on to. In addition, LookSmart also launched the "Express Modify" service, allowing pay for the rapid modification of the site

September 2001, Sohu Company in the domestic first announced to search engine charges. But the charging service is not for ordinary netizens, but for companies that want to add their name to the Sohu search engine to provide classified search service fees.

October 2001, Baidu launched its "bid ranking" service, this service has become its future very important source of profits.

Although October 2000, Google AdWords has been online, but it was officially launched in February 2002 AdWord Select PPC advertising business, users can target keyword search results page adword Advertising link rankings for the lowest bid for 5 cents, Google bid ranking in the consideration of the price and also refer to the link of the click Rate.

Search engines all over the town

March 2003, 3721 began its search engine business, the intention to enter the Chinese search engine market.

April 15, 2003 Sina officially announced and China Search Alliance (www.chinasearch.com.cn) Form a strategic partner for the enterprise to provide search ranking services.

June 2004, Yahoo! in China launched an independent domain name search engine A search yisou.com, the same year, Yahoo! launched the local search Engine.

The same year August 3, Sohu officially launched a new independent domain name Professional search website "Sogou" (www.sogou.com), push the user interactive search function, become the world's first third-generation Chinese interactive search engine service provider.

September 15, 2004, Amazon, the world's largest online shopping site, released a new version of its web Search service tool, which organizes useful information from a variety of resources that the user chooses, and remembers the user's personal search record (a9.com). With A9, users can access Google's Web search results and image search results, movie information from IMDB, and reference information from gurunet.com, as well as Amazon's own promotional search Inside the book Service.

January 2005, AOL released a new version of the search engine, and took a number of measures to strengthen the search engine.

In December 2006, search engine Ask.com published a local search service, integrating maps, directions, business services outlets, business events and movies in the same interface.

Everything starts with search

Search engine of the Warring States era, while the search engine in the Internet's core position has also been established, in the profit pressure driven by a greater expansion of services to become a matter of concern. Among them, the development of more advanced services based on search technology is the first choice for most search engines. Query-type search engines, video search, image search, automatic classification, vertical search, business search and so-called natural language technology emerge. Search engines are also moving in the direction of diversification.

February 2004, Yahoo consolidated its acquisition of a number of search engine technology, launched the Yst (Yahoo search Marvell) Full search engine technology, the second month, Yahoo! Launch the Web rank Evaluation system, website rank. The system gives the page a rating of 1-10 points according to the number of external links on the page.

April 12, 2005, Sohu to about 10 million U.S. dollars wholly-owned acquisition of a domestic GO2MAP electronic map Company, Sohu completion of the acquisition of Go2map will integrate its resources into Sohu's search business line. Go2map has been focusing on the field of Web map search since 2000, GO2MAP has achieved nearly 90% of the market share in the segment.

April 2001, Teoma debut. Teoma originated in a project at the University of Rutgers in 1998, where Professor Apostolos Gerasoulis led Chinese Tao Yang and other people to the creation of Teoma in the New Jersey piscataway,2001 spring debut, September 2001 questioned search engine Ask Jeeves acquisition, April 2002 released again. The Teoma database is still small, but has two features: support for refine similar to automatic categorization, and resources for a professional linked directory.

February 2007, Baidu announced the official launch of the video search service

The Palo Alto Research Center (PARC) of Xerox (Xerox) in February 2007 collaborated with San Francisco Powerset to develop a new search engine--a query search engine based on natural language.

#p # Search Engine History notes #e# search technology keywords keywords of searches Marvell

Search technology is evolving, and here are the main search engine technologies, covering all the technologies that have emerged and introducing them.

Keyword search

1991, the first search engine "Aceh" (Archie) used such technology.

Multi-word retrieval and Boolean retrieval

(That is, you can search using the and and OR operators) 1992

Network robot

(1994, in essence, a network robot is a continuous network of programs, it along with the connection to find the page and its own monthly pages.) Each page is found, it is copied to the database, so that people can use the keyword to find it. The early rise of "web Crawlers" by "web Crawlers" (WebCrawler) Brain Ping (Brian Pinkerton) quickly led to the emergence of now more famous search engines such as Lycos and AltaVista. And also the evolving "web Spider" (Spider) program.

Categories (1994)

1994, represented by the appearance of Einet Galaxy. In the same period, with a simple database search function of the classification of the birth of Yahoo, the directory index search model, although not strictly the search engine, but also is one of the important forms of classification directory search.

Full-Text Search

At the beginning of 1994, Washington University CS student Brian Pinkerton began his small project WebCrawler (Brian Pinkerton announces the availability of WebCrawler). WebCrawler is the first Full-text search engine on the Internet to support all the text of a search file, before it, users can only search by URL and digest, the summary usually comes from manual comment or the first 100 words of the program automatically take the body.

Relevance sort

By linking, font, location and other characteristics, to determine the search terms and the positive relevance of the page. Its foundation is very perfect natural language processing technology, although early in the Lycos ERA has proposed this technology hypothesis as well as some realization way, but the true correlation sort, has not yet come.

Advanced Search Syntax

The primary implementation of advanced Search includes judgment statements such as and, or, not.

PageRank

The principle of PageRank is similar to the citation mechanism in scientific papers: whose papers are cited more often, who is the authority. Its principle refers to the standard of bibliometrics. PageRank is a system for measuring the number of links and the quality of links, and its algorithm can be briefly described in the following formula. The actual calculation method is much more complicated.

Where: The coefficient is a number greater than 0, less than 1. The general setting is 0.85. Page 1, page 2 to page n indicates that all links point to A's web page.

Hilltop algorithm

Hilltop algorithm of the guiding ideology and PageRank is consistent, all through the Web page by the number and quality of links to determine the search results of the ranking weight. But Hilltop believes that only computing links from related documents with the same subject will be more valuable to searchers: links between topic-related pages contribute more to weight calculations than links with unrelated topics. If the site is introduced "clothing", there are 10 links from the "clothing" related to the site link to take over, that these 10 links than the other 10 from the "electrical" related to the site chain to take over the contribution to be big. Bharat said the document, which had an impact on the subject, was a "specialist" document, from which the link to the target document determined the main part of the linked page "Weight score".

The basic sequencing process with PageRank combined with hilltop algorithm to determine the degree of match between Web pages and search terms replaces the excessive reliance on PageRank values to find those authoritative pages. This hilltop algorithm is very important for two Web page sorting processes with the same subject and PR similarity. Hilltop also avoids many ways to improve Web page PageRank values by adding many invalid links.

#p # Search Engine history notes #e#

Traffic Rank

One of the reasons that this pattern differs from PageRank and can last for a long time is that it puts the actual flow of Web pages at the top of the weight. In other words, no matter how much the link, the visitor's arrival times and the stay time will be the important basis which decides a website value.

2, search China searching

Undoubtedly, when Wall Street hangs out the giant logo of Baidu, the tide of the Internet China era no one can doubt. As in many other areas of the internet, China has not fallen behind any developed countries in the Internet. Mention of China's search engine, have to mention Baidu.

1. Baidu who is Baidu

2000, Baidu founder Robin Li, Xu returned to create Baidu, and began to Silicon Valley power, Sohu, Sina to provide search services.

2001, Baidu search engine officially released, since then began to provide users with independent search services. At this time Baidu has started to 263, Tom, Shanghai hotline to provide search technology services, while the future of Baidu's main source of profits, search engine bidding rankings have also been launched.

2002, Baidu fully took over 263 search channels, and NetEase launched a deep cooperation, began to provide services for Yahoo Chinese (yahoo.com.cn). So far in the country has formed a search only Baidu pattern. Competitive ranking to upgrade all over the country agent mechanism has been completed to establish, Yahoo also joined the Baidu ranked camp, Konka, Lenovo, Coca-Cola and other international well-known enterprises to become Baidu ranked customers. With the launch of Baidu's "flash plan" to keep technology ahead, the first domestic commercial user "competitive intelligence system" was launched in July and signed with Shenzhou Digital, Sinopec and China Mobile. September with the State Council news office signed Baidu News monitoring System. November, Baidu officially released later for Baidu brought a lot of trouble mp3 search. January CCTV International full set of the introduction of Baidu "net thing through" information retrieval software.

2003, according to Alexa statistics, the most popular Chinese website, Baidu has ranked fourth, so far, Baidu has become the world's largest Chinese search engine. This year, Baidu officially launched a picture, news two technology search engine, and at the same time launched a regional search, "stick" and other business, Baidu "PPC" paid search service marketing activities are also vigorously launched, and gradually become the main source of profits Baidu.

2004, China's first search of the secretary "skillfully using Baidu," the official publication, and at this time Baidu has set a daily record of the daughter of a day, set a Chinese online advertising sky-high. As Baidu became the world's fourth largest web site and iResearch2004 China search engine Research report released, Baidu search industry leader's position is basically established. Its super search PA, mobile phone search and other functions also icing on the cake.

August 5, 2005, Baidu successfully landed on the United States Nasdaq, the first day of the price rose by 354%, creating a Chinese concept stocks of the American myth, but also to Baidu and China to create a group of millionaires and billionaires. This year, Baidu released the first hard disk search tools, and China Telecom launched the Yellow Pages search, Baidu know, film and television search, Baidu teaser, map search, mobile entertainment and other services, showing the search everywhere ambitions.
2006, Baidu because of MP3 search the intellectual property lawsuit encounters the turn, in with the entertainment giant MTV's strategic cooperation at the same time, mp3 search case also finally won. At the same time, Baidu National studies, Baidu Encyclopedia, Baidu Space and a series of services to start, and the introduction of new products, "three Search" service Pack ("Search", "Space Search", "blog Search"). At the same time launched a precision advertising model to further expand its search engine results.

#p # Search Engine history notes #e# search Money

Search engine has always been a market entry threshold higher industry, according to the "2005-2006 Internet Industry Survey Report" analysis, the market's industry concentration of up to 78.2%. As of December 2005, up to 89.1% of Internet users have used search engines, and 97.06 million have used them.

Search engine has become the arrival rate after the spam mail network marketing means, and due to the convenience of the Internet, geographical distance no longer become a problem. On the web, no one cares where your store is located. However, there may be hundreds of millions of potential customers on the Internet, but you still have to try to let them know you exist. When an Internet user starts his online journey, where does he usually start? Needless to doubt, search engines will be their first place to start.

The number and change of Chinese search engine users

The number of Chinese search engine users

Chinese search engine users reached 97.06 million in 2005, up 29.1% from 2004 compared with 37.71 million in 2002, according to Iresearch's research.

Table: 2002-2005 China search engine user number and growth rate

(Data Source: Eric 2005 China search engine market share report)

The proportion of Internet users in Chinese search engine

According to iresearch research data, 2005 China's search engine users will reach 97.06 million, accounting for 87.4% of Chinese Internet users, the proportion of 7.4%, compared to 2004, compared to the 2002 increase of 23.6%.

Table: 2002-2005 Chinese search engine users accounted for the proportion of Internet users

(Data Source: Eric 2005 China search engine market share report)

China search Engine Day Search Request Volume situation

According to Iresearch's research data, China's search engine searched for 406.5 million times in December 2005, a 115.8% increase from December 2004, and 17 times times more than December 2002.

Table: 2002-2005 China search engine daily search demand and growth rate

(Data Source: Eric 2005 China search engine market share report)

Number and number of users in China's daily use of search engines

According to Iresearch's research data, the number of users who use search engines in China every day in December 2005 is 66.97 million, up 48.4% from December 2004. In December 2005, the number of users using search engines reached 6.1 times, a 45.2% increase from December 2004.

Table: 2002-2005 China Daily use of search engines and number of users

(Data Source: Eric 2005 China search engine market share report)

Chinese search engine Website user Usage change situation

IResearch compared with 2004 data shows that in China's search engine users market share, Baidu accounted for the highest share, and in 2005 the proportion has a larger rise to 46.5%. The second is Google, which has risen from the third 22.4% in 2004 to the second 26.9% in 2005 years. The third is the Yahoo system, which has lost a second position in 2005, with a market share of 15.6% per cent down 14.6% from 2004 's 30.2%.

Table: 2004-2005 Search engine usage changes

(Data Source: Eric 2005 China search engine market share report)

The income scale of Chinese network marketing operators

After years of development of the Internet in China, the network marketing market has gradually grown, 2004 China's network marketing market income of 2.34 billion yuan, 2005 China's network marketing market scale increased by 78.4%, 4.17 billion yuan. China's internet marketing market in 2005 was 9 times times the size of 2001.

Table: China Network Marketing Market Scale

(E for forecast data, data source: Eric 2005 China search engine market share report)

Revenue and growth rate of Chinese search engine operators

2005, China's search engine operators revenue reached 1.04 billion yuan, a 81.9% increase from 2004, compared to the 2001 search engine in the initial stage of 50 million yuan doubled 20 times times. IResearch According to research forecasts, as the use of search engines gradually into the daily life of netizens, as well as corporate users of the network marketing approach to the gradual recognition of the 2006 Chinese search engine operators will have a revenue of 1.9 billion yuan scale, by 2010, will reach 10 billion yuan market size, Annual growth rate reached 41.2%.

Table: 2001-2010 China search engine operators revenue and growth rate

(E for forecast data, data source: Eric 2005 China search engine market share report)

The income composition of internet marketing in China over the years

In the 2001, China's internet marketing market, search engine marketing accounted for only 10.8%, to 2005 years, search engine marketing rose to 24.9%, the ratio is expected to increase each year, to 2010 search engine marketing will account for China's network marketing revenue 39.1%.