How could anybody so young have a following in every country on the planet? Facebook turns 10 today and – as of December 31 – has 1.23 billion active users, CNET reports. More than 750 million of them are active on the site daily. Looking at US Facebook use, the Pew Internet Project provides even more insight in a blog post timed to the site's birthday. Pew reports that 57% of US adults use … [Read more...] about 10-year-old Facebook: Data