I was thinking about this and gave it a try. If you're using AdWords to drive traffic to your site, why not create a campaign that will drive traffic to your listing.
Here's what I've done. I added a listing to my P2A site. Created a subdomain for it. (http://621croftdrive.ephiladelphiarealestate.com) Then created an AdWord campaign with specific keywords for that listing and pointed to it. I'm getting about 10 visitors a day and it costs me about $0.40c a day. I think it's a pretty cheap and target way to advertise a listing.
Any thoughts?
Russell Volk
http://www.ephiladelphiarealestate.com