These are some of my favorite websites.

Search Engines
Google The best search engine.

Yahoo! With over half a million sites divided into more than 25,000 categories, Yahoo! is both browseable and searchable.

Favorite Sites
Bashguard A really good trials website.
Chain-gang A good website from some riders in southampton.
Monty Monty bikes website.
Megamo Megamo bikes website.
Brisa Brisa Bikes Website.
MBUK Mountain Biking UK website.(The best mountain biking Magazine)
Trialsworks A great trials website.