Back to the Roots - An Amiga super site in the true sense of the words. They have everything from (legal) game downloads and demos to music mods and tools and much more. To make it short: Anyone remotely interested in Amiga issues MUST visit this site.
GameRankings - This site collects virtually every review that is posted on another site about a game and introduces them into their own huge database. If you want to know what the internet thinks of a game then go there. Period.
Home of the Underdogs - IMHO the best abandonware site on the net. They specialize in PC abandonware, but with a unusual focus: All games on the site have somehow failed. Whether in sales, reviews or whatever, HOTU will tell. That does also mean that you won't find the high end bestsellers there.
The Legacy - A cool site that has a similar target like RPGCult.com : To collect game information. The bandwith of TheLegacy is a LITTLE wider: They try to collect info on all games ever released. Period.
MobyGames - An internet database about computer and video games, that's MobyGames. But believe it or not, this site collects info on ALL games ever released on any system. A mammoth task which can only be accomplished by allowing users to enter data directly into the database. They must have a good data review system, as I never encountered crap within their database.
RPGamer - This is one of the best sites for the console RPG-player. They are covering many games of which I never even heard the title. Daily news, weekly reviews and editorials and much more demand your visit.
RPGCult - An internet database for single player RPG's and... my personal project. *looks down in shame*
RPGDot - Take a look at this site and you will never surf for PC RPG news elsewhere. Besides the news, they have a nice, though underdeveloped, RPG database, a strong community and much, much more. Definitely one of the best RPG sites out there.