I prefer a good book (I have 16... not all good) over most websites and certainly over the opinions of the majority of people on forums.
If you have any water chemisty questions these articles by Randy Holmes Farley are unbeatable
http://archive.reefcentral.com/forum...hreadid=102605
For overal tank setup and management I'm a big fan of the Reef Aquarium Vol 3 by Delbeek and Sprung as well.
For coral care I dont generally look at websites either. Borneman's Aquarium Corals is also my favorite.
http://reefkeeping.com/issues/subject/index.php has some more really good in-depth articles on various subjects and its easy to find them on this index page.