I just have to say "me too!" for newegg. Even when I have absolutely no intention of buying from them, it's my go-to site to find specs and reviews for current computer hardware. It doesn't hurt that I almost always do buy from them -- the prices are good, and the shipping is fast.

A few other sites:

Photoshop Disasters. They have an unfortunate tendency to not explain some of the more subtle disasters, but there are plenty of extreme disasters mixed in.

OMG that dress! For all of your pretty pictures of historical clothing needs.

I Can Has Cheezburger. Lolcats.