Zillow began in 2005 or 2006.
From the Jul 10, 2007 Seattle Post-Intelligencer story about Zillow's new feature:
The idea is that people will not only visit Zillow to learn about homes, but -- one could imagine -- local restaurants, recent crimes or the history of the neighborhood. With this feature, you could also see Zillow moving down the path of trying to link people together in certain neighborhoods to share a lawnmower, sell a grill, host a fundraiser or, perhaps, find a date. And if that occurs, the real estate information and Zestimates offered by Zillow today might just be a Trojan horse into other lucrative advertising markets.
Zillow blog posting about its new Neighborhood Pages feature.
Jul 11, 2007 blog posting titled Is Zillow building a ghost town?
Jul 11, 2007 Buzzmachine blog posting titled Towns are hyperlocal social networks with data - people that is
