about web 3.0

 web service is a software system designed to support computer-to-computer interaction over the Internet. Web services are not new and usually take the form of an Application Programming Interface (API). The popular photography-sharing website Flickr provides a web service whereby developers can programmatically interface with Flickr to search for images. Currently, thousands of web services are available. However, in the context of Web 3.0, they take center stage. By combining a semantic markup and web services, the Web 3.0 promises the potential for applications that can speak to each other directly, and for broader searches for information through simpler interfaces.

compare with web 1.0

The  Web1.0 is seen as a "static" thing, like a billboard or a magazine. You can see lots of billboards, buy lots of magazines, enjoy or dislike them but they stay the same until they are changed by the publisher. 

Web2.0 applications" are ones that are "user-generated" or "user-shaped". Instead of being "published" by someone, the people using the site "publish" the content. They also market it and edit it. 

Which elements of Web 2.0 suits your need as a student

• facebook for communicate
• edmodo for study
• twitter
• blog

disadvantage of web 2.0

• people who can know where are they living
• some one can hack account so people can show information something it lie
• 
  

advantage of web 2.0

• They support collaboration across time and space.
• They are easily accessible and easy to use.
• Many people already have a comfort level using them.
• They are low-cost (sometimes even free).
• They do not require much IT support. 

reference 

http://content.arma.org/imm/JanFeb09/Walk_In_The_Cloud/web_2_benefits_considerations.aspx

What kind of people use Web 2.0?

Web 2.0 can be used by many different kinds of people, such as business men or women, kids, teens and even adults. Kids use the Web 2.0 for gaming and online games. Whereas teens use Web 2.0 for connecting with friends across countries like Facebook. 

How did Web 2.0 develop in today’s society?

Web 2.0 marks a change in us as a society as well as the Internet as a technology. In the early days of the web, we used it as a tool. Today, we aren't just using the Internet as a tool -- we are becoming a part of it.

web 2.0

The term Web 2.0 was coined in 1999 to describe web sites that use technology beyond the static pages of earlier web sites. It is closely associated with Tim O'Reilly because of the O'Reilly Media Web 2.0 conference which was held in late 2004. Although Web 2.0 suggests a new version of the World Wide Web, it does not refer to an update to any technical specification, but rather to cumulative changes in the ways software developers and end-users use the Web.