I get several thousand spam messages a day so tend to notice the latest trends. It seems that emails pretending to be from Facebook are becoming more popular at the moment and whilst other spam does still outnumber them, I am currently getting a few hundred a day. The emails tend to ask you to log in to update your details and do look like genuine Facebook emails so I can see how some people might be fooled. Bear in mind, though just as you would never click on an email to update an account or change details for a bank account the same applies to Facebook. I have noticed a number of people whose Facebook accounts have been compromised recently, I wonder whether its because they were fooled by one of these emails or whether their account was compromised by another method.