If you're still using Alex Comfort's 1972 The Joy of Sex as your guide to such topics as "frigidity," having sex on horseback, and "tactful ways to take a woman’s virginity," it's time to update.

British sexologist Susan Quilliam has revised the famous book, putting more focus where you need it most: the clit. In words oddly reminiscent of Obama's "McCain doesn't get it" speech, Quilliam says Comfort gave short shrift to the all-important bit of female anatomy "not because he was anti-clitoris, but because he just didn’t know." Also included now are sections on Internet porn, vulvar care, and a technique called the "Venus butterfly." [NY Times]