Everything But The House (EBTH) - Buy and sell one-of-a-kind items from the best estate sales
Clect - A social marketplace for collectors
Homewreckr - Are you in the perfect home?
Thinga.Me by Microsoft - Make virtual collections of your real stuff
Inside Real Estate - A must-read for those who buy, sell, and develop real estate
Lofty - Trusted Marketplace for Fine Arts, Antiques and Collectibles