"Web 2.0"

Definition:
The term "Web 2.0" was first used by Dale Dougherty and Craig Cline at the O'Reilly Media Web conference in 2004. "Web 2.0" refers to a perceived second generation of web design and development that aims to assist in communication, ineroperability, secure information sharing, and collaboration on the World Wide Web. "Web 2.0" encapsulates the idea of the proliferation of interconnectivity and interactivity of web-deliverd content. "Web 2.0" concepts have led to development and evolution of social networking sites, video sharing sites, web based communities, wikis, blogs, and applications.
According to Tim O'Reilly the term "Web 2.0" suggests a new version of the World Wide Web, however it does not refer to any updates in technical specifications, but rather to changes in the way that end users and software developers utilize the Web. O'Reilly believes the essence of "Web 2.0" is to work with the internet, not fight it. Therefore building applications and services around unique features of the internet, rather than expecting the internet to suit us as a platform.