I wonder if FB will buy them or build this in themselves. Given the shift to charging for any sort of significant organic reach, it seems natural for anyone ma

I wonder if FB will buy them or build this in themselves. Given the shift to charging for any sort of significant organic reach, it seems natural for anyone marketing on FB to want to do this since the posts they are putting out there are essentially ads this point, and should be tested as such to the extent possible with the tools available. Having a native tool to do this lets FB assure people that they are getting the most bang for their buck now that they need to pay to play.