Google Adwords is a great way to get more visitors to your site. There are a few things to remember though.
1. You should bid on less competitive phrases instead of Realtor or Real estate try the local neighborhoods names, home builder names, schools (just thought of that one now), and the city name with FSBO or condos or house.
2. make sure that you are using a small geographic area, your state or province. I did not do this at one point and got low return, or Click through for a neighborhood here called glasgow....wonder why?
3. Keep your cost per click low and bring it up if you want more traffic knowing that the monthly bill will go up.
4. Have a good compelling page that the future customer will go to. Once they get to you web page they have to have a reason to contact you either by form, email or telephone. You do not want to go to the work of having your possible customer look and then click away and never come back.