“We are trying to do something that's never been pulled off -- to build a platform where it is easy for people to share what they've bought,” says Mine co-founder and CEO Pierre Legrain. “We are about creating a directory of ownership, of people and their recent purchasing history of items they want to share.”

At first glance, this may remind you of the ill-fated startup Blippy, which allowed people to see what their friends were purchasing with credit cards in real-time.

“So it turns out that almost nobody wants people to check out their purchases,” was the memorable way Alexia Tsotsis started off her Blippy obit in TechCrunch in May 2011.