Women Behind Bars
A low-tech site, Women Behind Bars offers a place for incarcerated women to potentially find love by becoming a go-between with interested men who have internet access. For a fee men receive the mailing address of the gal they are interested in, and they start a penpal relationship on their own if interested. Strangely the site is divvied up by age and racial status in somewhat un-PC terms, with no one over the age of 50 listed.Trek Passions
I'm all for geeky pursuits, and I've been known to quote a line or two from Dune or Heroes. But to create a membership at a dating site that focuses entirely on Trekkies? Methinks it might be heavily male-centric, so maybe it would be a gold mine 30-something gals who'd like to debate about which Star Trek series was the best of the lot. And if there's a dating site for Trekkies, there must be at least one for the okatu and roleplaying folks. Anyone?420 Dating
Hm. Even though the fine print on the main page clearly states that 420 Dating is for "smoker friendly" singles and that they do not support the use of illegal substances, I'm doubtful that anyone using the site thinks they've joined because cigarettes are their inhalant of choice. Which if it were legal wouldn't be an issue, but what about those "featured smokers" whose photos are prominently displayed on every page?Scientific Match
For a lifetime membership of just under a thousand dollars (at half price until February of 2009), the people who sign up at Scientific Match will get a dating service that few others have tried yet - DNA testing to determine their compatibility with another. Its a bit farfetched, if only because so few people can afford the service, but also because the science is still in its infancy. Scientific Match looks at one's immune system to determine whether or not two people's DNA are dissimilar enough to procreate, in the hopes that members will be pleased with the way their matches smell to them (aka pheromones).MotoDate
Stuck in traffic and the person in the car behind you is tickling your fancy? Then you might just get the concept of MotoDate, which attempts to circumvent the whole "you don't look like your picture" fiasco that many online daters face. Members of the site receive a four digit sticker to place somewhere on their vehicle, and if someone finds them appealing while driving down the road, all they have to do is remember the code, go online, type it in, and then send them a note. Easy perhaps, for those of us with voice-activated recorders willing to jot down such details while trying to maneuver several tons of steel down a highway.
**Note: It looks like Motodate has closed for business as of March 2010.

