Advertising, Classified Ads Management Hosting Solutions -

OSClass It is a free and open script to create your advertisement or listings site.
Noahs Classifieds The leading classifieds software on the web!
Revive Adserver Revive Adserver is a Free Open Source Ad Server formerly known as OpenX Source.
OpenClassifieds OpenClassifieds is a free open source script for classifieds,advertisement or listings
GPixPixel GPixPixel is a FREE yet powerful million pixel script, based on the popular marketing concept.