The US, which since the beginning of the Web, has had the biggest online population, has been passed by China this year, The Register reports. "Data released earlier this year by the government-run China Internet Network Information Center said that China's internet users totaled 210 million at the end of 2007. US web analyst Nielsen/NetRatings put the American total at 216 million for the same period." And while we're on statistics, here are the "Top 10 most popular Web sites" in the world, blogged about in InformativePost.com, citing Alexa rankings. Looking at social sites, YouTube is second, MySpace and Facebook are 5th and 6th, respectively, and Hi5.com is No. 8. Orkut, a Google property along with YouTube, comes in at 10th.