http://www.usedtrailers.com/

http://www.usedtrailersforsale.org/

http://www.used-trailer-sale.com/

http://www.trailershopper.com/

http://www.trailershopper.com/browse-9-0.html

http://www.usedtrailers.com/truck.htm

http://www.trailersforless.com/auto_transport_trailers.html

http://www.usedtrucks.ryder.com/

http://www.trailersourceinc.com/used_trailers.html

http://www.1usedtrucks.com/trailers_truck_subcategory.php