Blank areas: originally I had it configured so that all the space was used until the adverts showed up. However, this got really annoying when the ad servers were slow -- you'd be reading something, and then suddenly the ad would appear, reshape the page and mess up the paragraph you're reading

Nav bar: added as per request!
Wiki: it's still accessible via /wiki, but a lot of the content was getting stagnant and with a site relaunch we didn't want to have a ghost town in the midst of it all! That said, there is some good stuff on there and we appreciate the help from you guys in the past. Any suggestions for what we can do with it?
Cheers,
Mike