craigslist - craigslist provides local classifieds and forums for jobs, housing, for sale, services, local community, and events
IAAI - IAA Buyer Salvage Auctions app allows you to find your favorite car by browsing an extensive collection or by looking for it in specific auction lists.
classified-ads - Classified Ads is a web based free to use ad viewing and posting system that can be accessed from any part of the world to view the local ads of any area and location.
GoDaddy Investor - GoDaddy Investor app allows the user to take part in domain auctions to invest in pre-owned domains without much of a stretch.
Geebo - Geebo is an online classified ad provider of employment, real estate, vehicles, local artists, house for sale, apartments for sale, and likewise many other types of advertisement for free.
Copart - Online Live Vehicle Auctions - Bid & Win