I'll be updating and adding to the list periodically.

Sentinel Related

Cascade Underground - great source of information

Nightowl's Nest - The BEST Sentinel resource site on the Net!

Guide Posts - Absolutely fabulous archive

Cascade Library - Auction story archive

B.L.A.I.R. Room - home of the BLAIRlist and BLAIRfic

Wolfpup's Den - lots of great authors

Santana's Place - cool page

Other

Fan Fiction on the Net - extensive archive with lots of shows

BoingDragon's Counters - source of the wolf counter

Free Desktop Themes - has a helpful course in theme-making

Mandy's Web Medley - Great source for graphics

SUNET - Swedish University Network's archive; tons of great graphics!

Clipart Connection - great animated gifs