thelinuxlink.net

I think it could be a nice section for your show to go through significant updates and new games that appear on the Linux Game Tome at http://www.happypenguin.org/. They're pretty much the definite resource for Linux gaming. It could be nice to hear which games have been updated and if there are any promising new games out. Not that it's important that you use the Game Tome for this specifically, but it's a very good resource for news.