Community based online classifieds Oddswop lets you create your own classifieds site for any special interest group or community. For Free! We're taking applications now: Some say that Oddswop is StackExchange + Craigslist. We connect like minded people to their passions via sharing their pre-loved treasures. Oddswop is a marketplace platform for Communities and special interest groups. Each Community can trade amongst themselves and some of the Communities are aggregated up to the base site.