Facebook is testing a new new feature called Collections where users mark images and create wishlists of products. Partners thus far include Pottery Barn, Neiman Marcus, Fab.com and Victoria's Secret. The collection look like photo albums.
Currently being tested are "want" and "collect" buttons.
It sounds a lot like Pinterest, if Pinterest had chosen a path more clearly within the law. Facebook's system appears to be opted in by retailers, rather than opted out; Facebook limits users to photos of products selected by retailers. Beyond that, there is surprisingly little to say. The very fact that the default state is OPT IN renders the whole operation kosher, as far as infringement is concerned.