1.Introduction
　　In recent years, the development of computer technology, multimedia technology, the communication technology, especially the rapid development of Internet greatly promoted the development of the network education. Network education has become a popular teaching mode. Network education support system as a key aspect to the network education and it is the realization of the strengths and weakness is a very important factor, the influence of the quality and effect of network education. Now the network education support system both at home and abroad have their own characteristics: some system has friendly interface, easy operation, but not practical, some systems have complete and perfect function, but a complex operation; Some systems is doing better chat room (can be used for face-to-face teaching); Some systems have a perfect test function [1]. Although these systems have their own characteristics, most of them are based on 1.0 network teaching mode, emphasize "you teach me to learn".
　　
　　2.WEB 2.0
　　The concept of Web 2.0 began in a meeting and spread out in the brainstorming between the O'Reilly Company and Media Live International Company. At present, the academic circle has not proposed a clear definition for Web2.0, but the following definition has been recognized by everyone: Web2.0 is a new generation of the Internet model that is represented by the site of Flickr, Craigslist, Linkedin, Tribes, Ryze, Friendster, Delicious, and 43Things.com, etc, centered by the applications of Blog, TAG, SNS, RSS, and wiki, based on and realized by the new theories and techniques such as the six-times-separation, xml, ajax, etc [2].
　　According to Best [3], the characteristics of Web 2.0 are: rich user experience, user participation, dynamic content, metadata, web standards and scalability. Further characteristics, such as openness, freedom [4] and collective intelligence [5] by way of user participation, can also be viewed as essential attributes of Web 2.0,
　　But, the breakthrough that Web2.0 achieved of the Web 1.0 is mainly based on the following characteristics [6] [7]
　　(1) Reusable micro-content
　　Micro-content refers to various data created by users. One journal, comment, or parole in the forum and so on, all belongs to the scope of micro-content. In fact, they also exist in Web1.0. But the micro-content in Web2.0 is reusable. Since xml entered the field of Web, the structuring of the micro-content become possible, which means that we can use RSS and other tools to polymerize, manage, separate and migrate these micro-contents, rather than being confined by the shackle of the original page, so as to achieve the reusability and the decentralization of the data and to meet the needs of different users.
(2) User-centric
　　The biggest feature of Web 1.0 is making things as focus. For example, in an e-commerce site, we are often concerned about what users have bought, but little likely to be aware of the transactions, because the organization of data is mainly thing-centric. On the contrary, the organization of data of Web 2.0 is people-centric, such as Blog and BBS which both stress the participation of everyone while the former emphasizes the role of people and the latter focuses on matter (theme).
　　(3) Sociality
　　Sociality is a universal characteristic of Web2.0 services. Because the Web2.0 is people-centric, people certainly give rise to social needs. Sociality brings much user interactivity and generates rich content, so that the use value and attraction are greatly increased.
　　(4) Users’ participation
　　The users’ participation is one of the Web 2.0 characteristics that almost everyone references to. Web2.0 adopts a structure that encourages users to participate in and contribute to, which enable the websites develop from pure "reading" to "writing" and "common building". In Web2.0, the user is no longer just the consumer of information, but also the creator of information. Thus, the right to speak on the information no longer just concentrates in the hands of a few elites, but is shared by everyone. Thus the broad participation in the construction of Internet content becomes possible.
　　The key technologies of Web 2.0 are as follows:
　　(1) Blog
　　Blog provides users with a network platform that users can release personal thoughts, ideas, and experiences and interact with others. Now, many sites represented by the portal sites have opened the blog services [8].
　　(2) RSS
　　RSS is a technology that sites can share contents between themselves. Through adopting RSS technology, sites can easily call other sites’ content providing with RSS subscription services. RSS enable site content spread in the wider space [9].
　　(3) SNS
　　SNS is distributed, based-personal interactive software which facilitate to build connections between the various independent entity among network [10]. (责任编辑：南粤论文中心)转贴于南粤论文中心: http://www.nylw.net(南粤论文中心__代写代发论文_毕业论文带写_广州职称论文代发_广州论文网）