Copious is a marketplace with a strong social dimension. You see, the site is meant to be a place where buyers and sellers actually befriend and follow each other (a la Facebook). In practice, this means that all the transactions that do take place on the site have a much higher degree of trustworthiness to them – users are buying from people that they know, not from utter strangers. They know who these sellers are to a much larger extent that they know who any person on eBay or Craigslist is. And the seller also knows who they are, so that the formula is nothing short of perfect.
Speaking of which, Facebook integration is provided. This means that any person who uses the site can bring his entire social graph along, and buy/sell from them on Copious. That should make things perfect for mostly everybody.
Copious can be joined for free in all cases. A fee is charged for each transaction that is carried to completion. Right now, that stands at 3,5 %. It will eventually go all the way to 10 %.
Copious.com In Their Own Words
Buy from and sell to people, not strangers.
Why Copious.com It Might Be A Killer
It should put an end to these trust issues that often weigh down online marketplaces.
Some Questions About Copious.com
Besides Facebook, which other social services are supported? Have users requested anything in particular? 
