Wuki.net 

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Reading things:
The Register
BBC News
BBC Sport
Slashdot
The Onion
Ananova (TV guide)

Time wasting:
VoidWars

Web logs:
My Weblog
Hixie's Natural Log
Xiven's Weblog
Kam's Weblog
Kai's Weblog

Comics:
Under Power
Penny Arcade
Real Life
User Friendly
Dilbert

Finding things:
Google (UK)
Babelfish
Dictionary.com
IMDB
Multimap
BT

Buying things:
Play
DVD Box Office
Amazon (US)

Useful Stuff:
W3C