SalsaEddy.org
CLUB INFO - Homepage for Crystal and sister clubs
DANCING IN HOUSTON - Aria's reviews of Houston clubs
HOUSTON CLUBS BY CLUBNETWERK - Hosted by Clubnetwerk
HOUSTON CLUB SCENE - Hosted by NoLimits
HOUSTON PRESS - Navigate through "Music", and then "Latin" links

Other Event Sources

CASA CUBA - Cubans in Houston website
LATIN PARTIES - Independently organized Houston parties
LA CLAVE - Read about a party TV broadcasting service.

http://www.on2guru.com/ - New York style Mambo resource