What sites are you on? OKcupid has proven to be the most poly friendly I have known... most of my poly community here and in area are on there. Plenty of fish is the second, but is more for hook ups and open relationships. Never say never though, I met my Mono there and he hadn't even heard of poly when we first met. Sometime a whole lot of educating is needed first, before meeting.
Anyone want to be friends on Facebook?
Send me your name via PM