In November, the duo created Friends for
Sale, now one of Facebook’s most popular games with nearly 700,000
daily players. Users buy, sell and own their friends, as though their
friends were pets or stocks. Owners can control their acquisitions,
forcing them to do or say things, as well as sell them and turn a
profit. Those being bought and sold are also part of the game, going up
and down in value.
The game has become especially popular among Facebook’s crowd of users in their 20s.
Here is much more, for the pointer thanks to Marko Siladin and also Curt Gardner. I have to admit I don’t really understand how this works, but it sure sounds like a "Markets in Everything" entry.