http://www.transgaming.com/ The Official Transgaming website provides details of games that are directly supported under Cedega.
http://www.linuxgames.com/ A good source of up-to-date information about the state of Linux gaming.
http://zerowing.idsoftware.com/linux/doom/ Includes a complete how-to and troubleshooting guide for running Doom 3 under Linux.
http://www.unrealtournament.com/ The official site of Unreal Tournament.
http://www.nvnews.net/vbulletin/forumdisplay.php?f=14 The Official NVIDIA Linux driver support forum.
http://www.nvidia.com/object/linux.html Home page for the NVIDIA Linux drivers.
http://www.ati.com/support/drivers/linux/radeon-linux.html/ Home page for the ATI Linux drivers.