Cheap Used Cars Online
While your local market will often have some of the best cheap used cars available (mainly due to the costs of transporting a car relative to its value) there are plenty of bargains to be found online as well. Aside from the obvious choice -- eBay Motors -- there are other places worth checking as well.
CraigsList has increasingly become more and more like the online equivalent of a local newspaper. Even if you don't have a CL page for your exact market, it's worth checking cities near you for great deals on used cars.
Get Set Auto is one of the main destinations for car shopping online, outside of the more general venues at eBay and CraigsList. Dealers from across the country list their vehicles here.
Smart Car Finder has a huge, constantly-updated database of both new and used vehicles online, in addition to helping site visitors secure financing and transportation for vehicle purhcases.
Online since 1996, AutoSales.com is one of, if not the oldest and original sites for used car dealers online. Their "grandfather" status in the relatively young world of online vehicle purchases gives them one of the broadest selections of inventories of any site in the business.
Don't need a perfect car? The bargains page at AutoMotix may have exactly what you need, with thousands of cars listed at or barely above the usual wholesale price for the vehicle. Most cars have cosmetic or other issues, and need some attention, but are generally driveable. AutoMotix also has a huge selection of parts and accessories for a wide range of vehicles available.
Interested in used Toyota cars? Toyota maintains an official, network-wide used car inventory at BuyAToyota.com