WetPaint

What they say:
Wetpaint powers websites that tap the power of collaborative thinking. The heart of the Wetpaint advantage is its ability to allow anyone — especially those without technical skill — to create and contribute to websites written for and by those who share a passion or interest. To do this, Wetpaint combines the best aspects of wikis, blogs, forums and social networks so anyone can click and type on the web.
Blogs make online publishing easy — but blogs are monologues. And forums are great for question and answers, but they're too hard to search. And wikis allow the reader to become the writer, editor and fact-checker, but they're just too darn hard to use for the average person. Wetpaint is different. With Wetpaint, anyone with a passion can create an entirely new website and invite others to help them build it. And it's easy — adding to a Wetpaint site is as simple as click and type.

Looks interesting.
Go on. Give it a try.
Sorry I forgot.

http://www.wetpaint.com/

Source: Internet Resources Newsletter