www.tomshardware.com
Tom's Hardware and anandtech are by far the most informative computer hardware
guides that can be found on the internet. This site sends out a biweekly email
that really can't be beat... if you're into that kind of thing I mean.
www.anandtech.com
AnAndTech is another good computer hardware online magazine. The forums here are
awesome. Check them out if you need answers from some knowledgeable
nerds, or if want to find the best way to rip off your local Staples.
www.newegg.com
Hands down, NewEgg has the widest selection, cheapest prices, and fastest
shipping of any other online computer hardware store.