Present count is 4 coworkers (we've always had unusually frank discussions about our various sex lives anyway), 1 neighbour (two weeks ago), 6 friends (one just last night), 2 aquaintances I felt had the right attitude and a cousin.
Some I've even told my screen name, but considering the nature of my relationships you'll never see me post naked pics if I ever post pics at all. I only know of two who have joined.
I still maintain that this site is one of the healthiest communities on the net. If I feel that someone has a good personality and a sense of humour I'll tell them about it.