USFreeads.com is a free classifieds site and has been in operation since 1999. They have one of the world's biggest classifieds list but is especially catered for the US audience. If you have something to sell or a service to offer, you can post ads on their website for viewers to access them. Although the actual service is free, you can join as a premium member which additional features like photo uploading are provided. And you can place a "featured ad", which will be published on 50 USFreeads local (regional) websites, giving your ads more exposure and views. Of course, the more features you use, the more you will have to pay for the advertisement.