Real Estate Vertical Showdown

The ever crowding real estate vertical field now includes the following sites:

Google Base
HouseValues
MSN Real Estate
HomeGain
AOL Real Estate
RealtyTrac.com
Rent.com
ServiceMagic
Apartments.com
Zillow.com
HomePages
Homethinking
HousingMaps
Inman Stories
Move.com
MyNewPlace
PropertyShark
Redfin
SpotRunner
StreetEasy
Trulia