Worldwide Gains, Possible US Traffic Slowdown for Facebook in January 2011

Some differences between different data sources appear in our latest effort to triangulate Facebook’s traffic. The company had a pretty strong February around the world, according to data from our Inside Facebook Gold report, gaining 23.8 million new users to total 641.1 million monthly actives. The United States led, adding 3.3 million to reach 152.2 million MAU. But it followed a flat January in the US.