Performance Tuning

AOA Forums
An overclocking website and forum which contains file downloads and an EPoX technician.
http://www.aoaforums.com/

Chillblast
Overclocking news and reviews.
http://www.chillblast.com

EnTech Taiwan
Company which develops the PowerStrip overclocking utility, supporting most video cards. Also other performance-enhancing utilities
http://www.entechtaiwan.net/

HardOCP
General computer hardware news and Overclocking page complete with information on varying degrees of cooling for overclocked video cards, CPUs, motherboards and other system hardware.
http://www.hardocp.com

HotHardware.com
Up-to-date video card and general hardware news and reviews, along with overclocking of Voodoo3, Voodoo5, Geforce256, Geforce2 and other video cards.
http://www.hothardware.com

OverClocked Inside
Overclocking help.
http://www.ocinside.de/index_e.html

Tom's Hardware Guide
General hardware news,as well as reviews and benchmarks of the latest 3D graphics adapters, examining also overclocking of the Voodoo3, Voodoo5, Geforce256, Geforce2, Savage4 and other graphics chipsets.
http://www.tomshardware.com