I have spent a bit of time over the last few days setting up Watir.com, hosted here on WordPress.
We were originally aiming to host our own version of Confluence and JIRA and use Confluence to serve the Watir.com homepage, but this ended up being a lot more complicated and expensive than originally planned.
The great thing about WordPress is, although it was originally a blogging platform, its functionality also works as a very neat CMS. Whilst wordpress.com has some limitations over wordpress.org, we can live with these limitations for now as we have a free (as in beer) hosted site that the world can see.
Check it out.