http://www.paleothea.com/

This site seems to be a very good site with all the important checks to a good, and credible site. There are 5 major places you can look called Goddesses, Nymphs, Mortals, Amazons, and Monstresses. Then you have the alphabet to look for the names. Then at the bottom of the page there are alternate places you can look for what you are trying to find. Over all i would say that this is a high quality site that I would gladly use.
4/5 stars