Greta Christina has been writing professionally since 1989, on topics including atheism, sexuality and sex-positivity, LGBT issues, politics, culture, and whatever crosses her mind. She is author of Why Are You Atheists So Angry? 99 Things That Piss Off the Godless, and of Bending: Dirty Kinky Stories About Pain, Power, Religion, Unicorns, & More, and is editor of Paying For It: A Guide for Sex Workers for Their Clients. She has been a public speaker for many years, and is on the speaker's bureaus of the Secular Student Alliance and Center for Inquiry. She is a regular contributor to AlterNet, Salon, The Humanist, and Free Inquiry. Her writing has appeared in magazines and newspapers including Ms., Penthouse, Chicago Sun-Times, On Our Backs, and Skeptical Inquirer, and anthologies including Everything You Know About God Is Wrong and three volumes of Best American Erotica. She lives in San Francisco with her wife, Ingrid. She tweets at @GretaChristina, and has been writing about atheism on Greta Christina's Blog since 2005.