Regarding reefkeeping web sites, I like:
www.wetwebmedia.com for fresh and saltwater aquarium info
talk.wetwebfotos.com a bulletin board associated with WetWebMedia
www.reefcentral.com for general saltwater aquarium discussions
The first site is run by Bob Fenner, author of the book The Conscientious Marine Aquarist and has a link to e0mail him and his helpers a question. They generally e-mail you an answer within a couple of hours.