Some of the most popular bars and Dance clubs in San Francisco
B a d l a n d 4121 18th St at Castro.  This bar was just reopened  and is one of the most popular places in the Castro. I see all races here, lots of cute Asian, Latino, African American, and everything else.  Badlands has a dance floor and plays great music
T h e  C a f e 2367 Market St , at Castro.  This is one of only two places you can dance in the Castro district, the other is listed above.    The crowed here is diverse , mostly 20s and 30s, and some 40s and up.  Has a deck overlooking Market street, smoking permitted on the deck
T h e  D e t o u r 2348 Market St.  If you like a cruise bar this place is for you.  The DJ here is great, plays lots of House music..  All ages 
T h e  E d g e 4149 18th St.  A semi- leather crowed here, age is mostly 30s and 40s with some 20s
M i d n i g h t  S u n  4067 18th St.   Video bar, plays music videos and comedy shorts.  Great place for Happy Hour.  The group here tends to be yuppie and the age range is mostly 30s and 40s, with some 20s
P e n d u l u m 4146 18th St.  Mostly African American, and admires.  Age group is mostly 30s and 40s, with some 20s
T h e  B a r 345 Castro St.  Lots of cute guys .  mostly a yuppie crowed with all ages 20s, 30s, 40s and up.
P o w e r h o u s e 1347 Folsom St  South of Market .  Leather bar, age group is mostly 30s and 40s up,, with some 20s
T h e  S t u d 399 9th St.   at Harrison St. South of Market.   A Theme night club, Wednesdays is retro night.  Has a Dance Floor.  All ages
E n d u p 40 6th ST  at Harrison  St.  Dance Club South of market,  music is house, with dance floor   Lots of guys on Fridays night (Fag Fridays at the Endup) Mostly 20s and 30s crowed with some 40s and up.  
C l u b A s i a 174 King St.  Asian Dace, club south of Market. Dance floor has lots of room for dancing.  Open first and third Friday of every month. open tell 4 am.  House and top 40 dance music.   Asian are mostly 20s and 30s , and a view 40s, the Caucasian  guys are mostly 30s and 40s, with some 20s and 50s..  
F u t u r a 174 King St.  Latino Dance Club, south of Market..  Open twice per month,  info:415-665-6715
C l u b  U n i v e r s e  177 Townsend St.  South of Market.  open  Saturdays night, except for special events.  One of the Largest Dance floors in San Francisco.  Party tell 7 am  lots of buff guys dancing  shirtless .
N '  T o u c h 1548 Polk St.   at Sacramento St.  Asian Dance bar.  Has a small dance floor.  The music here is great, Euro dance with some house.  ages range from the Asians crowed is mostly 20s and 30s, the Caucasians mostly 40s and up.   Allays open and can be cruise. 
The Cinch 1723 Polk St.  at Clay St.  Neighborhood bar, has lots of pool tables, patio for smoking Age group is mostly 30s and 40s and up, with some 20s.  Great place to hang out.
Giraffe Lounge 1131 Polk St, at Post St.   Neighborhood bar,  has lots of video monitors, pool tables,.  The age group here can very, but mostly 30s and 40s, with some 20s
Gangway 841 Larkin St. at Geary.    I recently discovered this bar and  must say it is a great place.  A neighborhood bar that has very down to earth guys.  I have never been in a bar in San Francisco that made me feel so welcome.  The crowed is mostly a blue collar crowed 30s and up.  If your tired of the Castro scene check it out.