Zillow: Good Real Estate Idea is a Fixer

A Web site allows buyers and sellers to find value of homes without providing personal info, however data is often inaccurate and incomplete

Designed for buyers, sellers and owners, Zillow.com offers real-time valuation data for over 67 million US homes at no cost and without having to enter personal information and endure (often painful) follow-up telemarketing calls.

In combining publicly available real estate data and Microsoft's web tool Virtual Earth, which produces color satellite photos of homes, Zillow represents the latest in what the press has dubbed "mash-up" technologies. The Seattle-based company has raised to date US$57 million, mainly from venture capitalists.

Before it's here, it's on the Bloomberg Terminal.