What is Web2.0

To understand web, you must first view the web history. World Wide Web, WWW for short, was invented by timberners-Lee, a British who served in a large scientific research institution in the European Community in 1989. Resources on the web and internet can be intuitively expressed in a webpage, and resources can be chained between webpages. Companies that have made great contributions to web1.0 include Netscape, Yahoo, and Google. Netscape developed the first large-scale commercial browser. Yang Zhiyuan of Yahoo proposed the Yellow Pages of the internet, and Google launched a popular search service later.

The biggest contribution of searching is to use machines to identify the amount of information on the Internet in Shanghai. However, simply knowing what keywords are in the web page only solves the need for people to browse the Web page. Therefore, Tim-Berners-Lee proposed WWW soon, and began to respect the concept of semantic web. Why? Machines cannot understand the content on the Internet. His ideal is that when creating webpages and constructing databases, everyone uses a semantic method to express the content on the webpage in a format that can be understood by machines. In this way, the entire Internet has become a well-structured knowledge base. Ideally, this is tempting because scientists and machines like ordered things. Berners-Lee is concerned about data on the Internet and whether it can be repeatedly referenced by other Internet applications. An example shows the charm of a standard database. There is a product called liberylink. After it is installed, when you go to Amazon for browsing, it will automatically tell you whether a book can be found in the user's local library, the book number, and so on. Because a book has a uniform Book Number and book name, two different Internet services (Amazon and local library database retrieval) can share data and provide users with new services.

However, after semantic networks were proposed, there were not many people responding to the problem. Why? It is too difficult to expect the Web Page Maker to provide so much additional information for the machine to understand a Web page. It is simply that people work for the machine. This violates the nature of laziness. You can see the success of Google. Google has a page rank technology that uses the relationship between webpages for sorting results, and uses the judgment of Web Page producers in disguise. Think about the number of Web Page creators, which is much smaller than the number of pure viewers. However, Google, with this innovation, has used part of the power of Web Page makers and has pushed it to the top of the Internet.

Therefore, the next step on the Internet is to make everyone busy, build the Internet for all, and then use the power of software and machines to make the information more accessible to those who need it. If we say that web1.0 is a data-centric network, I think that Web is a starting point for the Internet. Let's take a look at some recent Web2.0 products to understand the above points.

Blog: users can build networks, publish new knowledge, and link other users to the content, which naturally organizes the content.

RSS: automatically distribute and review user-generated content

Podcasting: publishing/grading of personal videos/audios

SNS: links between blog + people

Wiki: You can build an encyclopedia together.

From the perspective of knowledge production, the task of web1.0 is to put the human knowledge that has not been put on the Internet through the power of commerce on the Internet. The task of web is to organize the knowledge organically by browsing the knowledge strength and cooperating with each user, and continue to deepen the knowledge in this process, and generate new thoughts;

From the perspective of content creators, web1.0 is a commercial company that moves content online, while web focuses on users in a simple and casual manner, move new content to the Internet through blog/podcasting;

From the perspective of interactivity, web1.0 focuses on websites, while Web2.0 focuses on P2P.

Technically, the work efficiency of web clients is getting higher and higher. For example, Google map/Gmail uses Ajax technology as an example.

We can see that users play an increasingly important role on the Internet. They contribute content, disseminate content, and provide links and browsing paths between the content. In SNS, the content is organized by users as the core. Web2.0 is a user-centered Internet.

So, in this sense, what is the difference between Web2.0 and Tim Berners-Lee's semantic network? The starting point of Semantic Network is Data normalization and repeated machine calls. A semantic content publishing tool is proposed to try to make the Internet more orderly based on rules and technical standards. Search engines such as Google try to provide clues to the Internet without semantic networks. Web encourages users to publish content (blog/podcasting) in the most convenient way, but automatically takes people as the core (SNS) through the user's spontaneous (blog) or System) to provide indexes for these seemingly messy contents. Because these clues are provided by the user, they are more in line with the user's experience. The Internet has gradually evolved from keyword-centric organization and reading, to personal portals (SNS) of Internet users, or to personal thoughts (blogs/RSS) is the reading method of clues. Web2.0 emphasizes collaboration between users. Wiki is a typical example. From this perspective, the Internet is becoming more orderly, and every user is contributing: either contributing content or contributing content in order.

There will be a lot of discussions on the next-generation Internet. One thing is certain: Web is based on human-centered clues. Provides tools to facilitate user network weaving and encourage content delivery. According to the traces left by users on the internet, organizing browsing clues, providing related services, creating new values for users, and generating new values for the entire Internet, it is the way for the Web business.