"I think that maximizing your exposure on social networks like Facebook are
going to be increasingly important to small businesses - especially in
industries that are already so network-dependent like real estate.
Unfortunately, due to the fleeting nature of these sites, the trick is going
to
be to stay on top on where everyone is. The real danger is arriving
too
late and
finding your audience has already moved on....." From Future
of Real Estate Marketing
1. Encourage past clients to friend you on facebook.
2. Creating Groups on Facebook
How to productively take advantage of online communities