Really? You think there are sites already doing this?
Claim 1 is:1. A method for representing ownership of an asset in a social network environment, the method comprising: receiving a request from a first user of the social network environment to purchase the asset for a second user; recording information about a purchase of the asset from a vendor; associating, by a server for the social networking environment, the purchased asset with a profile of the second user; sending for display to a viewing user an association between the purchased asset and the second user on a feed display page; sending for display to the viewing user, in connection with the association between the purchased asset and the second user, information indicating that a third user, with whom the viewing user has established a connection in the social network, owns the asset, and information including a name of the first user who gave the asset to the second user, on the feed display page.
So please, by all means tell me what sites are already doing this. Since you think there are lots of sites already doing this, it should be quite easy for you to list a few. I can't wait...