Like nycindie, I've had better luck in real life. Almost always, it's been meeting someone through people I already know. However, FBF, I met at a mensa gathering (and CBF I met through FBF).
But I'm guessing that nycindie and I are a fair bit older than you, and we learned how to date in a world in which 'online' didn't exist.
I have met several people on line, and had a few dates, but none of them has ever been more than a few dates, or a long correspondence.
It would be a lovely thing for me if it never went anywhere but friendship. But then again, you're asking on a poly board ~ it might get you more fruitful answers to inquire of non-poly people.
Love is that condition in which the happiness of another person is essential to your own...
Robert A. Heinlein
Me: female, bi, (formerly hinge of a vee)
with FirstBoyFriend (FBF)(moderately long-distance)
and no longer with CurrentBoyFriend (CBF)(who lives in the apartment building next door)