CBS Interactive owns Metacritic, Gamefaqs and Gamespot.
Weird/interesting part of this is that some people might remember the Kane & Lynch, Gamespot, and Jeff Gerstmann ultimately getting Gerstmann fired because of his less then positive review. and now he and the others at Giant Bomb will be working in the same building as Gamespot.
Will be interesting to see how this turns out as the original idea of Giant Bomb was to get away from corporate control.
Edit:They will explain the story behind the firing at 4PM PDT