The Facebook logo is seen on a tablet screen on December 4, 2012 in Paris. Facebook began testing the feasibility of charging to guarantee that messages from strangers make it into inboxes of intended

... more 

The Facebook logo is seen on a tablet screen on December 4, 2012 in Paris. Facebook began testing the feasibility of charging to guarantee that messages from strangers make it into inboxes of intended recipients at the social network.

less