Knowledge Base
Web 2.0:
Web 2.0 refers to a perceived second generation of web-based communities and hosted services - such as social-networking sites and wikis - which aim to facilitate creativity, collaboration, and sharing between users. The term gained currency following the first 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 to changes in the ways software developers and end-users use webs.