Literally Unbelievable
Because there aren't enough trolls on the internet already, some of the dumber Facebook users are actually forced to troll themselves from time to time (read: all the time, always). Thankfully, for those of us that aren't ashamed to laugh at humanity's spiraling downfall, 'Literally Unbelievable' is a blog that documents these gems of human sadness. Basically it goes like this: somebody links to an article from The Onion believing it's real, along with an expression of their outrage (usually in the form of misspelled drivel), then a bunch of other idiots jump on the dumbf*** bandwagon as it goes careening down a mountain. It's great.  
Giant Bin Laden Destroys New York, Washington