Welcome to what I hope will be a new home for you!
I am a bit complementary to your situation. I identify as poly, but have just started exploring 'the lifestyle' in my area. My interest is to broaden my social group, and where I live, many more people identify as swingers than poly.
I find the two types of open relationship are closely related, though I speak more out of reading than anything else, having not attended any swinger events yet. I'll have to let you know what I find out!