Personally, I've had a lot of luck with Linkedin. There are loads and loads of discussion groups where you can get in touch with the relevant people. Just to get you started, here are a few you might find useful -
1. Bed & Breakfast, Inns and Vacation Rentals etc. (http://linkd.in/1HvCLAD)
2. Bed & Breakfast Innkeepers (http://linkd.in/1LG9rut)
3. Bed and Breakfast and Guest House Accommodation (http://linkd.in/1euiPHb)
The best thing about choosing Linkedin is that you don't randomly pick and choose anyone. You get to see their profiles, their recommendations, their connections etc in one place and it is much easier to make a decision as well!
I would say, go try Linkedin first and if it doesn't work out, check for other avenues like Craigslist.