Game Revolution: "Review embargoes (ie. not publishing a review until a certain date) are quite common in both the game and movie biz. They have seldom been problematic, until now.
These are almost never contractually enforced, but they are socially enforced as we, on both sides of the gaming fence, are all professionals who have to work together. And I think it's fair for gaming companies to want us to not trash-talk their products until they're actually out. Think of it as a gentlemen's agreement, and here at GR we always honor them.
However, recently I have noticed a disturbing new trend: The Exclusive Review.
This is where one publisher is given the blessing to publish their review before anyone else. Eidos has apparently gone so far (or at least their UK public relations firm has) as to try and make their embargo dates score-based, letting the good reviews publish before the bad ones."