gathers in one place a bevy of information on properties and their prices in many parts of the Universe. If a house is for sale, you can find contact information, read descriptions, and ask questions of the sellers.
This grassroots, nonprofit site organizes and connects social network sites people who might like to trade items within their own communities. It works really well for finding someone to come over and get that one useless thing out of your house.
Brings it down to the local level by helping you choose products from companies that are really walking the walk,