I'll just do this by category:
Other Sites on Terr.com:
Warcraft 2 puds and patches and stuffElectric Sheep page (not yet complete)
IRC people:
Friends Cafe (run by Emily)Scott Roger's page
KUZAK internet services (run by Aric)
Smoo's page
SK's page (RIP)
Guitars:
Paul Reed Smith guitarsGibson guitars
Fender Instruments
Musician's Friend online Catalog
Guitar.ch
Guitar.com
Harmony Central tab search
Games:
IGN Network (Leah, you rule)OGR.com
Old Man Murray
Thresh's Firing Squad
The Nintendojo
Music:
Official See Colin Slash siteOfficial Creed site
Official Bitesize Site (Tom, Steven, Leslie, you guys rule)
Official KoRN site
Official Stone Temple Pilots site
Unofficial Led Zeppelin site
Official Pearl Jam site
Official Metallica site
3DLuvr.com
Slashdot
Palm Gear (for Palm Pilots)
Team Karim (another of my creations)
User Friendly
The Onion
Red Meat
Google.com
Altavista.com
Yahoo.com
Penny Arcade, Online Comic
Rich "Lowtax"s Something Awful.com
Savage Studio Games