I like these folks. I just posted a link to the Center for Sex and Culture from my website, and think the organization is worthy of a post here as well. Go take a look at their website.

Their mission is to provide non-judgmental, sex-positive sexuality education and support to diverse populations by means of classes, workshops, social gatherings, and hands-on, practical skills-building events; to maintain and house these events and supporting materials and functions; to maintain a publicly-accessible library and archives; to staff and support this learning environment.