GameTrailers.com

The GameTrailers.com provides a ton of good quality video game trailers. This is a great place to visit before you drop $50 for a game. They even have videos of reviews, interviews, and walkthroughs. However, most of the videos do force you to watch a short 10 - 15 second ad. I guess the site developers need to eat too. I don't mind watching the short commercials, because one game trailer is worth a thousand screenshots!