Web 2.0

The concept of "Web 2.0" began in 2004 with a brainstorming forum between publisher O'Reilly and media live international. As an Internet pioneer and vice president of O'Reilly, Dale Dougherty pointed out that with exciting new programs and amazing regularity among new websites, the Internet is not only far from "crashing", but even more important than ever. Furthermore, there seems to be some common ground among the companies that survived the bursting of the foam. Is it the bursting of the Internet foam that marks a turning point for the Internet, leading to movements such as "Web 2.0"? We agree that the concept of "Web 2.0" was born. Web2.0 pays more attention to the interaction of users. Users are not only the browsers of website content, but also the makers of website content. The so-called website content maker means that every user on the Internet is no longer just an Internet reader, but also an Internet author; No longer just surfing the Internet, but also becoming a wave maker; In terms of mode, it has developed from simple "reading" to "writing" and "joint construction"; From passively receiving Internet information to actively creating Internet information, so as to be more humanized.

In the year and a half after that conference, the word "Web 2.0" has been deeply rooted in the hearts of the people, and more than 470million links can be searched from Google. However, there are still great differences on the meaning of Web 2.0. Some people degrade Web 2.0 as a meaningless marketing hype slogan, while others understand it as a new traditional concept.

Dvelopment History (from web1.0 to web2.0)
Web 1.0: "read only" information display platform

In the era of Web 1.0, that is, from 1991 to 2004, it is the first stage of the World Wide Web revolution, which is usually called read-only network. The website is informative and only contains static content with hyperlinks. In short, it has no CSS, dynamic links and interactivity (such as login users, comments on blog articles, etc.). It is forbidden to put advertisements on the website while surfing the Internet. Is a content delivery network (CDN), which can display information fragments on the website. It can be used as a personal website; It charges users according to the page viewed; It has directories that enable users to retrieve specific information.

Web 2.0: interactive content production network

Web 2.0 has been the second stage of the World Wide Web revolution since 2004. It is usually called read-write network. Also known as participatory social networks, social networks contain many online tools and platforms in which people can share their views, opinions, ideas and experiences. It highlights user generated content, usability and end-user interoperability. Starting to write blogs in 2018, after the emergence of blogs, there have been a large number of Internet sites that can be written, such as Sina Weibo, where you can publish your own Weibo; Facebook allows you to post your own updates; You can post your own circle of friends on wechat. Web 2.0 applications tend to interact more with end users. Therefore, the end user is not only the user of the application, but also the participant of the tool.

Web 3.0: personalized environment of "going to the center"

The Web3.0 concept aims to create a decentralized but secure Internet in which people can exchange money and information safely without middlemen or large technology companies. Unlike Web2.0, which stores data in a single database or cloud provider, Web3.0 applications run either on the blockchain or on point-to-point nodes (servers).

Web2.0 Features
The Internet application under Web2.0 mode has the following remarkable characteristics: decentralization, openness and sharing.

1. User sharing. In Web2.0 mode, various views can be shared without time and geographical restrictions. Users can get the information they need and publish their own views.

2. Information aggregation. Information is accumulated on the network and will not be lost.

3. A community of interests. In the Web2.0 mode, the groups who are interested in a certain or some problems are gathered. It can be said that the market segments have been generated virtually.

The Advantages of Web2.0
Web2.0 is a general term for a new class of Internet applications relative to Web1.0 (the Internet model before 2003). It is a revolution from core content to external applications. The development from Web1.0 to Web2.0, which is richer in content, more connected and more instrumental, has become a new development trend of the Internet.

The transformation from Web1.0 to Web2.0, specifically speaking, is the development from simple "reading" to "writing" and "joint construction" in terms of mode; From passively receiving Internet information to actively creating Internet information! From the basic component unit, it develops from "web page" to "published / recorded information"; In terms of tools, it is the development from Internet browsers to various browsers, RSS readers and other content; In terms of operation mechanism, it changes from "client server" to "web service"; The author developed from programmers and other professionals to all ordinary users; In terms of application, it has developed from primary "funny" application to comprehensive and large-scale application.