Some Great Link

1) http://www.askvg.com/ (Windows Tips and tricks)
2) Ultimate Collection of Uninstallers / Removal Tools for All Popular Anti-Virus Software -http://www.askvg.com/ultimate-collection-of-uninstallers-removal-tools-for-all-popular-anti-virus-software/

3) http://www.kellys-korner-xp.com/xp_abc.htm (a to z registry guide)