I love the idea of annotation. I don't love the idea of Rap Genius. Here's why. AFAIK Rap Genius has to host all of the content that can be annotated through t

I love the idea of annotation. I don't love the idea of Rap Genius. Here's why. AFAIK Rap Genius has to host all of the content that can be annotated through their platform. That means a copy/fork of it has to be put on their servers. It also means they decide which content can be annotated. Immensely valuable stuff. Unlike Quora or StackOverflow, it's a collection of thoughts around works which can date back in history - predating Rap Genius and not created on Rap Genius. Being a VC backed / for-profit venture I don't see how Rap Genius can make changes that would measurably change my view. Happy to be proven wrong! That being said, there's http://hypothes.is/ http://hypothes.is/