OSClass - OSclass is all you need to easily create your own classifieds website.
Flynax - Flynax is the leading classified software vendor.
ClassiBase - Simple responsive classifieds script for building classifieds website.
craigslist - craigslist provides local classifieds and forums for jobs, housing, for sale, services, local community, and events
Blue Classy - Blueclassy is a premium and most reliable classifieds ads script that help webmasters to build their own classified website in minutes.
Neighborhoods.nyc - Hyper-local alerts targeted by NYC neighborhood