Just Facebook? How about all of the social networking crap. Every website I visit (other than this one) has a giant bar with 10 buttons on it asking me to Like/Digg/Plus/Promote/Jabber the article. It’s just like reality TV. Entertainment for the masses.
Sure, there's a role for this in some circumstances ... but I see it all as symptomatic of a nation that is bored out of its collective minds.