Believe it or not, there is a certain subset of the internet-using population that uses google for everything. Rather than typing www.pepsi.com, they go to google and type www.pepsi.com into the search bar and then click on the first link that pops up (which 98% of the time is what they're looking for).
So here's what happened. As Eston just linked on his Twitter acct, ReadWriteWeb just put up an article that includes the words "facebook" and "login" in the title. So when these people search for "facebook login" on google, they go straight to this article and think that this article is facebook and that some sort of horrible redesign has happened and facebook has hidden the log in section, preventing them access to farmville. Some example comments are below. RWW even had to post a disclaimer just to help people out.
This is how people get taken by phishing scams. If you need information about phishing scams to make sure you don't get taken, please send me $2000 and then I will transfer the money from my Nigerian Bank account. Just email me your credit union login and we'll launder the money through your mother's account (what was her maiden name again?).
Oh, yeah, here's the original article with all the comments.
edit: it would seem they may have been using Bing, not Google.
