FeedMyApp is a showcase of web 2.0 application. They classify web apps by tagging them and creating a brief description for each one listed. You can browse the directory by tag or by date or you can search for apps using the search box. It is really a good source of design inspiration and get an idea of what needs to be a successful web application.

Requirements: Web 2.0 Applications
Demo: http://www.feedmyapp.com
License: N/A