Yoshi's is still in business, but their jazz bookings have been reduced significantly. Worth looking at the calendar, though.
Red Poppy Art House has some interesting bookings coming up.
-->If you can handle crowds, the amazing (and FREE) Hardly Strictly Bluegrass Festival is taking place in GG Park, Oct 6-8. They don't typically have jazz, but the styles of music presented is VERY wide ranging. Look at the schedule - artists range from Randy Newman to Hot Tuna to Bela Fleck to Steve Earle to Lucinda Williams ... and on and on. Surprisingly, THIS year there IS a significant jazz performance on Sunday: Ornette's Prime Time Band Reunion featuring Jamaaladeen Tacuma, Al MacDowell, Charlie Ellerbe, Badal Roy, Denardo Coleman with Special Guests David Murray, Wallace Roney & Marc Ribot!