[brd]

I was thinking the same thing. Considering they have ~42% of all users (assuming the billion internet user estimate) there is only so much growth available from relying on their current model of acquiring users and serving ads to them.

I would imagine a next logical step would be to expand its ad network beyond facebook (i.e. serve facebook ads outside of facebook itself), it would allow for a significant jump in growth potential while staying close to their core competency.