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Madmonkey: Independent Game Network
Dedicated to independently created games. Includes downloads, developer forums, documentation, monthly columns, and resources.
http://www.madmonkey.net/

Marksman Gaming
Reviews of PC and PlayStation 2 titles.
http://marksman-gaming.info/

MCPC Games
Focuses on puzzle and strategy games. Reviews and news covering PC, Game Boy Advance, PlayStation 2, and GameCube.
http://alumnus.caltech.edu/~drmatt/mcpcg/

MegaGames
Cheats, patches, trailers, and news.
http://www.megagames.com/

Mindless Games & Entertainment
News, reviews, interviews, and discussion forums.
http://www.mindlessgames.com/

MyArcadePlanet.com
Offers reviews, cheats, previews, and entertainment news.
http://www.myarcadeplanet.com

MyGamer
News, reviews of games and related hardware, cheats and hints, and downloads.
http://www.mygamer.com/

MobyGames
Feed of game reviews for PC and consoles. [RSS]
http://www.mobygames.com/rss/new-reviews.rss