When you find a great website, paste it here for all to share.

URL
Description
http://www.infoplease.com/ipa/A0934909.html
Basic definitions; site managed by Pearson's Educ Publishing
http://www.ipl.org/div/searchresults/?words=mythology&searchtype=traditional
Directory of websites chosen by librarians; search by your topic for ideas.
http://www.theoi.com/
Recommended by Mr. Quartermus