My wife and I are swingers, and it's something that you can't just get in to. You HAVE to have a pretty strong relationship to begin with, and then you absolutely MUST maintain communication.
Ways to get started vary, but some Yahoo groups, and the like are a good way. Check out
www.swingvillage.com and
www.lifestylelounge.com You can check out profiles of other couples, and start off an online friendship.
Things that you must remember getting in to this is that certain ground rules MUST be set. And NEVER broken. Raeanna and I have determined that we won't play alone. We MAY play with a single female, since she is bi-sexual, but both of us will be involved. We are a package deal. It's both or none. Some couples don't go in to separate rooms. They will swap partners, but not rooms. These rules are absolutely critical to maintaining a solid relationship in your own marriage or relationship. If you get comfortable with a couple, you can vary the rules for different couples, but make sure you're both in agreement.
One thing to think of is that some people get in this for the friendship, and don't play with just anybody. Others are in it to rack up numbers. For us, we have ended up with five other couples that we play with and we are friends as well. I like the numbers side of it, I'll be honest, but it's not my primary objective.
If you have any questions at all, feel free to ask them in this thread, or PM myself or Raeanna74.