411 REFERENCE · Wikibooks
Social Ballroom Dancing/Tango
Reference material by Wikibooks contributors. This retains its source identity and is not 411 news reporting.
American tango
Argentine tango
Characterizations of the three styles of tango:
http://www.dance-forums.com//showpost.php?p=568&postcount=1
On a thread of general dance jokes:
http://www.dance-forums.com//showthread.php?t=213
Social Ballroom