What's got all the little kiddies going crazy this week? Muxtape. That's right, Muxtape, the online mix tape website that recently launched and has quickly become the Tumblr for music. Now all you hipsters and wanna be DJ's can create an account, upload your songs, and send it along to your friends. We have quickly become obsessed and figured we would share it with you, because it's Friday, and that means Fun Day.