While I was looking for a decent project management suite that had the ability to create tasks, track tickets, and manage users I came across a few websites that have a huge list of “Web 2.0” sites. For those of you who haven’t heard of Web 2.0 yet I’d recommend checking out Wikipedia’s article on it.
Advocates of the concept suggest that technologies such as weblogs, social bookmarking, wikis, podcasts, RSS feeds (and other forms of many-to-many publishing), social software, Web APIs, Web standards and online Web services imply a significant change in web usage. Source: Wikipedia
Check out the giant list of all things Web 2.0: