by STEVEN WENGROVITZ, Facebook As Facebook approached its tenth birthday earlier this year, we took the opportunity to assess our progress thus far—and to gear up for all the work we still have to do—when it comes to pursuing our company’s mission to make the world more open and connected. Facebook is used in nearly every country in the world. Over 80% of the people who use Facebook daily live outside of the U.S., which is also where our growth is coming from, particularly in Asia, Africa, and Latin America. While our Internet.Org efforts are focused on bringing Internet access to more people all over the world, as a company we’re also aggressively focused on improving the experience of the 1.3 billion people around the world who enjoy Facebook already. Facebook does research to improve its services. Many parts of the world experience Facebook through smartphones but as we continue to grow globally, increasingly we are also seeing a rise in low-end devices with a spotty Internet connection—a far more typical scenario...