Okay, two final thoughts, then I'll say "Just keep the faith, she's out there."
"As for where to meet poly people, if by some chance you are interested in anything alternative like Renaissance fairs, goth culture, sci-fi conventions, indie music, bdsm, or any small fringe group, you will be more likely to meet people who have at least heard of poly and are accepting of it."
-- SpaceHippieGeek, Polyamorous Percolations
Even if it's not an "alternative" type group, if there's a club or something in your area that does something you're interested in, you can always join that group and it just gives you a way to get out there and meet people. If you meet someone on a platonic level and get to talking about poly, then they can decide how they feel about it without any "pressure to agree." Then if they do decide poly doesn't bother them too much, and some kind of romantic connection subsequently develops, you'll already have "had the poly conversation" with them.
And that's basically all I got. There's sites for finding local poly groups but I admit you probably won't get much farther than you have already.
Anyway, polyamory is a big undertaking so it's not like you need to be in a hurry to find anyone anyway. Use the time to your advantage; study a lot of threads on Polyamory.com and post lots of questions and whatnot. It's a good idea to know ahead of time about the common pitfalls and pro tips. Ahem, I think I'm sort of repeating myself but ... only cause it's a good thing to repeat.
Enjoy your stay with us!