Take a look at JotSpot, the company offering a free beta Wiki product. These features are remarkable. It appears that the Jotspot founders have thought through how to solve the techy issues that frustrate most communicators. For instance, they have this feature that allows you to send an email to every page of your Wiki. Imagine that! No manual ‘posting’ unless you really have to. Just “cc” an email you are sending your team/project mates, and it gets automatically posted.

If you want to try it out, go here, and fill out some basic info.
I should have mine up in a few days. I am already working on an article on Wikis, and by the time it is published, I should be up and running with a great collaboration tool.