CraigsList Automatic Poster Software - Version 4.0 Automate your personal and business advertising! The software program makes the difficult CL posting process child's play and helps you manage your ads. GREAT FOR: Real Estate Professionals who want to list many properties in multiple locations and anyone wanting to maximize their exposure on Craigslist. Unlike most CL posters that simply do not work, this software is continually tested and updated and we offer a working demo!