The paper explains the concept of Web 2.0, its definition and its tool such as Blogs, RSS, feeds, Wikis, Podcasts and podcasting, social bookmarking, Social networking and Tagging. Here authors also explain Library 2.0 and its tools, Features of Library 2.0, Advantages and Challenges of Library 2.0. The tools of Library 2.0 i.e. Blogs, RSS feed, Wikis, Podcasts, Social bookmarking, Social
... [Show full abstract] networking& Tagging along with its application in the field of Library and Information Science.