Facebook Sit-In Stream Is Defining Moment for Social Video - Bloomberg

Also see C-Span Delivers on Sit-In, Even With Cameras Off (NYT) and YouTube unveils mobile live streaming at VidCon (Mashable)

"The lawmakers’ videos showed images and viewpoints of the House chamber never before seen, Mortman said. Still, C-SPAN did switch between a number of feeds from both Periscope and Facebook, seeking out the ones with the best quality, he said, adding that the traditional cameras still had the best images.
The high-profile win for live streaming could also lead to a potential sales boon for Facebook and Twitter, both of which are expanding into video as a way of wringing more revenue from advertisers eager to reach the billion-plus people who spend time on the sites."

Facebook Sit-In Stream Is Defining Moment for Social Video - Bloomberg