Remember this post a few months ago, comparing Facebook with Walmart? In that post I pointed out that Facebook had more than 300 million registered users. Well, now, just 4 months later, Facebook has over 400 million registered users, and in January apparently surpassed Yahoo in traffic numbers, making Facebook the 2nd most heavily visited website in the US. Google, of course, is #1 (Skolai Images is #5 or 6, depending on if update the blog or not). But yes, that’s right, Facebook is now bigger than Yahoo. Until 2008, Yahoo was the #1 website in the world. News article here.