The term “Web 2.0” (2004–present) is commonly associated with web applications that facilitate interactive information sharing, and collaboration on the World Wide Web.
Examples of Web 2.0 include web-based communities, hosted services, web applications, social-networking sites, video-sharing sites, wikis, blogs, etc.
A Web 2.0 site allows its users to interact with other users or to change website content, in contrast to non-interactive websites where users are limited to the passive viewing of information that is provided to them. (Wikipedia.com)
