INACTIVE NOTICE: This plugin is unsupported by WPMUDEV, we've published it here for those technical types who might want to fork and maintain it for their needs.
Classifieds gives users a place to buy and sell goods on your WordPress site.
Make Money on Your Site
Users can create and manage ads, upload images, receive emails about their listings and purchase credits. Classifieds is fully Multisite and BuddyPress compatible, meaning you can create a whole network of localized classifieds sites, similar to Craigslist.
You can also enable the credit system and charge users for placing ads on your site. Thanks to the plugin's full PayPal integration, you set the prices and make money for each add posted on your site.