Apparently Facebook has been down all day and people are freaking out over the situation. Major media has covered the problem all day, Twitter has been lit up with about a bajillion comments on the topic, DownDetector is logging hundreds of comments a minute about the problem, even the conspiracy folks are getting riled up about it.
Personally I wouldn't care if the entire service disappeared, but for those whose lives or businesses revolve around Facebook, this is obviously a big deal. On the other hand, Facebook is free for its more than a billion users so you kind of get what you pay for. The demands on Twitter for FB to get the service up NOW because people are annoyed that it is down is kind of ludicrous when you consider these users aren't even paying customers.
In addition to having the largest social media service in the world go down for hours on end, the outage is also affecting Instagram and What's App (also owned by Facebook). For people whose only connection to the outside world is through social media, I'm guessing they are having a very bad day. I would suggest they go read a book or, you know, go outside and actually talk to people.
On a side note, this is a good reason to diversify your communication options; it's useful when your social media provider of choice goes down and it will be useful in the event of a wide-spread disaster that shuts down all major communication options.