--Audacia Ray, the editor of the sex worker zine $pread and a Fleshbot [nsfw] contributor, talks at Modern Times about the commodification of sex on the Internet. 7:30 p.m., 888 Valencia (x 20th)

--Our hero Johnny Funcheap suggests OneNight, an evening of comedy at the Purple Onion featuring local comic Will Franken. 140 Columbus (x Pacific), $5 if you mention funcheap and $10 if you don't, 9 p.m.

--Power Point Karaoke with the Creative Commons Salon! Donate a power point presentation of yours to make someone else give. Party's at Shine (1337 Mission x 9th) at 7 p.m.

--The Museum of the African Diaspora and the SF Black Film Festival present , about a white policeman in South African seeking to atone for killing an anti-apartheid activist. 7:30, 701 Mission (x 3rd), $8.

--And at your local libraries -- Michelle Tea hosts her queer spoken word Radar reading event at the Main (100 Larkin, x Grove), 6 p.m., while at the Park Branch (1833 Page x Cole), rock historian Richie Unterberger (famous for his Beatles research) is screening some of his rare rock movie clips.