Among the highlights: Emerging markets continue to lead in the 8% year-over-year growth in global Internet users, with China adding the most (264 million users from 2008-2012). And while 81% of users are outside of the U.S., 80% of the top 10 global internet properties were made in the U.S. (Google, Microsoft and Facebook are at the top of that list.) Another interesting international comparison: Americans are under sharers. Just 15% of Americans report that they share “everything” or “most things” online, compared to a world average of 24%. Saudi Arabians are the world’s biggest sharers and the Japanese share the least.