I've added a few more links (over on the left... you'll probably have to scroll down a bit):
Dave Black Photography
Sports images are ten-a-penny these days, but Dave Black manages to combine infectious (and boundless) enthusiasm with an eye for a different angle and meticulous attention to detail. Even better, he's happy to share his techniques with the rest of us.
Want to know more about the nitty gritty of using remote flash? You'll want to pay this site a visit, then. Everything you ever wanted to know about fixing and triggering as many remote flashguns as you can be bothered to fiddle around with.
Thom Hogan's incisive commentary on Nikon products has become essential reading for many Nikon users, and his tests are the fairest and most accurate I've seen anywhere.