If you're interested in history and sex, the documentary Power & Passion: The Technology of Orgasm is right up your alley. Currently showing at the Mill Valley film festival but also available on DVD, Variety describes Power & Passion as "hard to resist for non-prudes." The film discusses the history of the vibrator, the popularity of "passion parties" (Tupperware meets sex toys), and the emergence of women's erotica stores. According to Variety, the most poignant moments come "when women confess how they were misled by shaming, downright wrong popular wisdoms about female sexuality." Masturbating non-prudes take note! [Variety]