Nowadays, it's hard to imagine the process of buying, selling, or renting without the Internet as a guide. Whether we are trying to find communities of people who buy and sell the same things we do, or are seeking "wisdom of the crowd" opinion on potential buys, the Internet is often the first place we look. The sites below, we feel, are best at bringing buyers, sellers, and renters together, and arming them with the intel they need to do the deal.
Zillow: From some of the creators of Expedia comes Zillow, which gathers in one place a bevy of information on properties and their prices in many parts of the United States. If a house is for sale, you can find contact information, read descriptions, and ask questions of the sellers. Plus it's just fun to see how much your neighbor's house is worth.
Greenzer: Greenzer brings it down to the local level by helping you choose products from companies that are really walking the walk, not just talking the "green" talk to help their bottom line.
HousingMaps: "Mashups," to me, have been largely an overhyped, unrealized concept. HousingMaps, however, is a notable exception. It's a simple mashup of Google Maps and Craigslist housing listings. Choose the part of town in which you want to live, and see what's available in your price range.
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