The Joomla framework seems to be really excellent and should provide the CMS infrastructure for a lot of interesting additions over the next few months, time permitting.
Currently it's set up with the goal of allowing lots of user participation in the site.  Each registered user can have their own blog, and can comment just about everywhere - I hope this will lead to getting lots of constructive feedback on the content of the site.
If you have any suggestions, feel free to email me at This email address is being protected from spambots. You need JavaScript enabled to view it.