Web2.0 is an example of a new generation of internet-based services such as social networking sites, wikis, communication tools, and folksonomies that emphasize online collaboration and sharing among users. These services allow individuals to build personal web pages, interact with other individuals or members of a group, and share a variety of media including images, video, and text. Web2.0 sites encourage participation and collaboration through social interaction between users in order to unlock the wisdom of crowds and leverage network effects to deliver better services.