Despite the phrase "Bay Area" in the name, the scene doesn't really span the entire Bay Area region: the performance venues have largely only been located in either San Francisco or in the East Bay.
Many performances have taken place in small one-off venues, or as part of relatively short-lived weekly series, but at any point in time, there are typically a few larger, longer-lived performance venues that define the character of the scene, for example Beanbenders, Luggage Store Gallery or 21 Grand.