Web 2.0 is all about interactive user experience using evolving technologies with web collaboration. A Web 2.0 site allows users to interact and collaborate with each other in a social media dialogue as creators of user-generated content in a virtual community. It requires a different development and architect mindset. All backend will be in private or public cloud http backbone and the game will be played on font end development. With devices getting smarter and always available and browser getting more powerful with client-side smart runtime environment and storage we developers and architects need to reskill ourselves in new realm of universal connectivity.