web 2.0

"Web 2.0" refers to the second generation of web development and web design. It is characterized as facilitating communication, information sharing, interoperability, user-centered design[1] and collaboration on the World Wide Web. It has led to the development and evolution of web-based communities, hosted services, and web applications. Examples include social-networking sites, video-sharing sites, wikis, blogs, mashups and folksonomies.

The term is now closely associated with Tim O'Reilly because of the O'Reilly Media Web 2.0 conference in 2004.Although the term suggests a new version of the World Wide Web, it does not refer to an update to any technical specifications, but rather to cumulative changes in the ways software developers and end-users utilize the Web. According to Tim O'Reilly:

Web 2.0 is the business revolution in the computer industry caused by the move to the Internet as a platform, and an attempt to understand the rules for success on that new platform.