I just had to check to see what forum I was on. Oh, TFP. No wonder Daniel responded like that!
You might have to wait until some of the more enlightened respond here.
I'm not an expert and don't know what you call it. You could try a swingers board, like
http://www.swingersboard.com
It sounds like a reasonable way to keep a marriage alive if you are away for weeks at a time. Do you also have a woman to take care of your needs while you are gone?