WikiMatrix was created by the people of CosmoCode. It aims to help people to choose a good wiki service according to their needs by comparing different wiki products. It’s a powerful idea and may develop to compare blogs, CMS, VLEs, and so on.
social_media
Socialsoftwarematrix
On socialsoftwarematrix.org visitors will get an idea about how social software can be used in a company as well as a comparative overview about social software products.
It compares social software such as Atlassian Confluence 3.0, blueKiwi 2009, IBM Lotus Connections 3.0, Microsoft SharePoint 2010 and MindTouch.
10 Tag Cloud Generators
A list of tag cloud generators:
Web 2.0 Expo
Web 2.0 Expo – a conference for Web 2.0 technology users.
Web n' Circle 