Web 2.0 is a technical term describing the trend in the use of World Wide Web technology and web design. The aims of Web 2.0 are to enhance creativity, information sharing and collaboration among users, rather than just retrieving information. For example, one of the most promising area emerged recently in Web 2.0 is the development and evolution of Web-based communities and hosted services, such as social networking sites, wikis, Blogs and folkonomies. They can build on the interactive facilities of “Web 1.0” to provide “Network as platform” computing, allowing users to run software or applications entirely through a browser. Users can own the data on a Web 2.0 site and exercise control over that data.