What is web 2.0?

Web 2.0 is frequently related to web applications that allow active participation between a website and its visitors. Fresh content or regularly updated content seems to be the most important factor with this new moniker. Examples are typically forums, wikis, video sharing sites, social media, social bookmarking, rss feeds, ajax, and of course, blogs. Web 2.0 is all about innovation and finding better ways of searching and interacting with information on the world wide web.