Upworthy has a Tumblr now. Tumblrs are cool.
upworthy: Our mission, now that we have chosen to accept it, is simple: We want to make meaningful things go as crazy-viral as Keyboard Cat (and now you have that song stuck in your head). And you — yes you, right there, reading this sentence right now — can help. We believe that the world would be a better place if more people knew more stuff — not only that gay marriage should be legal or...