Different Kinds of Cake

I've been researching the different kinds of cake there are so I can broaden my recipe horizons.  This page has an excellent cake related glossary that describes different cakes (Butter cakes, Cheesecakes, Foam cakes, Fruit cakes, Spice cakes, Sponge cakes and angel food cakes, Yeast cake, etc.):

http://www.thenibble.com/reviews/main/cookies/cakes/glossary2.asp