freetango.org
Go. Tango.
DJ > Information
It looks like it has information and cross linking on every piece of music released on CD. Maybe even longer!
From the Neotango web site, run by Sharna Fabiano in Washington, DC (who is an all-around kick-ass dancer). :-)
New, Alternative & Non-Tango Tango Music Reviews
They have the CDDB service, the one that your MP3 software talks to to find album information.
Playing Music for Milongas: The DJ's Role. by Stephen Brown
This site talks about many song restoration projects, Montreal milongas, tango history, and other dance things.
A bunch of detailed articles on the history of various parts of tango: dance styles, music, learning.
A brief history on tango.
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