In web 2.0 things are a bit different. Users are empowered with tools that permit them more interaction and participation in knowledge building. Web tools such as blogs, wikis, and social media websites have decentralized knowledge and enhanced collaboration and communication. Web 2.0 foregrounded concepts of collective intelligence, distributed-expertise, and wisdom of the mob. Similarly, in education 2.0 learning is student-centred and involves continuous interaction between learners and their teachers and also with the content being studied. Collaborative approaches to instruction such as PBL, game based learning, flipped learning have been adopted as teaching modes.