“I think people don’t really understand how invested a lot of the largest marketers and brands in the world are in global reach. People think they sort of discount growth outside the United States and the developed ad markets. But when we meet with our clients, they talk about the developing world all the time. For these huge customers, they already have all the customers in [developed] markets. And so their growth is increasingly tied to customers who are first getting connected on mobile.” –Facebook COO Sheryl Sandberg