Private sources. In addition to these free government sites, you can use private sites. These sites provide information about federal and local government auctions. Gov-Auctions gives you access to both federal and state auctions. The sites charge a one-time fee of $39.00 for access to their information. Having all auctions on one site can be helpful. If you are launching a serious car search or buy auction cars on a frequent basis, paying to use this site might make financial sense is run by a private company and is not affiliated with the government. It provides information and links to government-run auctions, but the site itself is part of the wholesale liquidation auction market. Items are sold as is and sometimes there are fees. You have to register to bid and get information, but it doesn’t cost anything to join the site.
The objective of this paper is to investigate the preferences ofpotential bidders in choosing between uniform and discriminatory auctionpricing methods. Many financial assets, particularly government bonds,are issued in an auction. Uniform and discriminatory pricing constitutethe two most popular mechanisms used in public auctions. Theoreticalpapers have not been able to provide an unequivocal ... [Show full abstract]Read more 

No-reserve auction (NR), also known as an absolute auction, is an auction in which the item for sale will be sold regardless of price.[36][37] From the seller's perspective, advertising an auction as having no reserve price can be desirable because it potentially attracts a greater number of bidders due to the possibility of a bargain.[36] If more bidders attend the auction, a higher price might ultimately be achieved because of heightened competition from bidders.[37] This contrasts with a reserve auction, where the item for sale may not be sold if the final bid is not high enough to satisfy the seller. In practice, an auction advertised as "absolute" or "no-reserve" may nonetheless still not sell to the highest bidder on the day, for example, if the seller withdraws the item from the auction or extends the auction period indefinitely,[38] although these practices may be restricted by law in some jurisdictions or under the terms of sale available from the auctioneer.

Real property - Primarily, this consists of developed land with buildings, usually acquired by the federal government for a specific purpose, such as a military base or office building. This also includes some U.S. Forest Service properties, which usually consist of administrative sites and facilities. The General Services Administration (GSA) is the federal agency responsible for selling developed surplus property.  
I wasn't aware that the TSA sold all of the stuff it confiscated! That's cheap goods right there! My mom works for a cruise line, and they don't confiscate stuff, but people do tend to forget all kinds of things they bring on the ship, so every once in a while the company has a big flea market available to employees. I find it funny when my mom comes home with watches and bracelets she wouldn't have otherwise bought.
The following link will take you to the sale list for the next abandoned & confiscated vehicle auction. Be advised that some of these vehicles will not be present on the day of sale, as owners/lien holders will have reclaimed the vehicles. You must be present at the sale preview to know what remaining vehicles will be offered and to view vehicle conditions.
PLEASE READ THESE TERMS OF SALE CAREFULLY, AS THEY HAVE BEEN RECENTLY UPDATED.  THIS IS AN INTERNET-ONLY AUCTION!  AUCTION CLOSING DATE: Tuesday, March 19th, beginning at 11:07 am Bidding closes on the first item at 11:07 am, then closes at the rate discussed in these Terms and Conditions of Sale.  INSPECT: Thursday, March 14th, 10 am - 2   [ View Full Listing ]
The District of Columbia now auctions its surplus property online through GovDeals, a Liquidity Services, Inc. marketplace. The district awarded the contract for the management of the inventory, appraisal, sale and shipping of the city's surplus property to Liquidity Services Inc. LSI conducts auctions of city assets such as vehicles, police automobile accessories, computer equipment, radios and other communications equipment, office furniture and other supplies through its online marketplace. The auctions are expected to improve data tracking and financial oversight of the city's surplus asset disposition activities.