It seems to me that love finds you no matter where you are.
I found our girlfriend accidentally. I clicked on her profile instead of the link to the last thing posted on a different forum. She saw that I had looked at her profile and so she looked at mine. We (her, me, and my husband) are now in a FMF Triad and it's great. We are just now looking into the swinging scene, just to have some fun. Our gf we meet on a free dating site that we joined when we first opened our relationship before we even knew what polyamory was all about.
So my advice is "yes" be honest and do what makes you comfortable. If you don't think you can find your match swinging then change it up and try an online free dating site. www.okcupid.com
worked for us and it is a poly friendly site. It's the first place I had even heard about being poly.