I hate to pick on people .. but I had to point this out as a waste of money.

Facebook and google adwords can be good traffic sources to get people to your listings, but you have to know how to do it right.

Always create a landing page with a contact / register for more info ... if you can give them a freebie for signing up for your newsletter or something .. just don't send them blindly to your home page and hope for the best.

Might as well print door hangers and give them to some kid in the neighbourhood to put them up (read: in the garbage) for you.