Comparison of search engines Google, MSN, and Yahoo-search engine technology

[Marketing of The Times] Yahoo! The decision to buy Overture was announced to cause further waves in the search engine industry. People will wait and see what kind of competition will be formed by several major search engines. The following is the latest comparison of the features of several search engines:
 
In general, Google has the largest database among several search engines. Therefore, Google often returns more results than other engines. It presents keywords-related pages to searchers as much as possible, but lacks accuracy. Because many Google databases come from blog websites and many blogger search for Google, Google attaches great importance to the indexing of blog website materials, search results often contain more blog information than other websites.
 
Google is also widely reflected in: it searches for files in many formats, such as pdf, ps, doc, xls, ppt, and rtf, the search engine AllTheWeb only indexes pdf, swf, and doc files. However, for a single file format, the total number of files it searches for is often less than that of other search engines.
 
Compared with Google, MSN databases are much smaller, with only over 1 billion index files. Its search results mainly come from Inktomi, but they also have their own data, focusing on commercial websites and shopping orientation. MSN search focuses on websites rather than web pages as Google does. Generally, it only indexes 3 to 4 representative pages of websites. It Will index more important websites, few websites are unknown. This is a reference for those who primarily search for websites rather than specific page text content.
 
Yahoo! The data is currently from Google, but the search results are still different. Yahoo! More inclined to display more extensive web pages than Google. In addition, Yahoo! Especially good news search.
 
Each major search engine has its own advantages. You should make full use of these features to perform multiple searches to obtain the best search results. (Hu Baojie)