Rather than visiting Realtor.com, buyers and sellers are now more likely to visit a brokerage or an individual agent's site according to Real Trends 2006.

Also interesting is that while Zillow's traffic continues to climb, traffic at Realtor.com is decreasing.

When you take a listing, you must make a business decision about whether you want to place it on Zillow. Your seller may want to "claim their house" and post their asking price as the "Make me sell price" on Zillow. No one knows what effect Zillow will have in the long run on broker Web site traffic.