the official website

an online store selling new and used computer and video games.

search engine that ranks by popularity

an archive of Usenet newsgroups; useful for finding discussions; formerly DejaNews

a site specializing in trading computer games; useful if you want to trade one of your games for Prison Break: The Conspiracy.

Many older games listed on MobyGames are out of print. Auction sites like eBay are the best place to find them.