Between these 2 links, you will find all the links you need.

Dennis Palumbo's Links (you'll need another lifetime to navigate them all)

 

More than you ever wanted to know about fonts: Luc's Pages

 

Here's a bonus link for identifying fonts:

http://bowfinprintworks.com/FontSpotting.html

(See the identification guides table at the bottom)

 

Here's my favorite place for buying commercial fonts:

MyFonts