not to try to siteplug or anything but I always recommend reading these sites:
(not in any order)
<a href="http://stumptuous.com/weights.html">Krista Smash</a>
<a href="http://www.johnstonefitness.com">John Stone's site</a> *** really interesting
<a href="http://www.exrx.net/Lists/Directory.html">The gif directory of exrx.net</a> AWESOME info