Encyclopedia Mythica
Encyclopedia Mythica: Greek People (Mythological)
Featuring the heroes, heroines, and mythical creatures from Greek legend, this site offers information on hundreds of characters, as well as etymology, pronunciation, pictures, and more.
Other
Bob's Byway: Glossary of Poetic Terms
Calling itself "unique," Bob's is easy to use, with cross-links throughout, phonetic pronunciation guides when necessary, and many examples and quotations. Click on the letter and scroll for the word.