just a thought:
If you have a business FB page for your property it's maybe worth mentioning to potential guests that they can see your FB page even if they're not FB users.
A booking through OD, called me, and said how they'd seen my FB page and enjoyed the photos and comments, even though they're not FB registered.
Just another hope for those of us who don't want to rely totally on those stinky old listing sites.
don't forget your FB page can be visited by non-FB users!
I always draw the attention of enquirers and renters to the FB page as it is more bloggy in tone than my listings and I think keeps up the anticipation over the many months to their trip. My current guests at the finca were regular 'likers' of my FB posts so I know that people do appreciate the page. The only problem with not being an FB user is that you cannot like the actual page and thus receive alerts regarding new posts.