TezPage - Looking for the best free classifieds ads site?
Helium - Helium lets you accept payments by credit card for anything you want to sell online.
craigslist - craigslist provides local classifieds and forums for jobs, housing, for sale, services, local community, and events
PiPer - A DIY Minecraft computer to build gadgets
Bedpage - Bedpage is a classified ad posting a website that comes as the alternative to Backpage and offers almost all the major services to post for multiple categories.
Pennywise - Cross-platform application to open any website or media in a floating window