A group of Silicon Valley veterans are building a shopping service around the idea that Facebook's real-identity system is good for building trust in online commerce.
Copious lets people see whom they are buying from and selling to.
Though it connects people through Facebook, Copious isn't about buying and selling among friends.
Rather, it connects buyers and sellers based on their online identities. That way, someone shopping for bike parts or handbags can see if anyone they know has bought an item from a seller or if they are connected through a Facebook friend, friend of a friend or Twitter.
Copious also recommends items based on buyers' Facebook interests and other activities, rather than on previous items they have purchased, as they do on Amazon or eBay.
