Thanks for the last link[1]. It is pretty amazing. I've studied some Scheme and call/cc on college (and played around with it on Ruby), but this post made me realize how much more powerful can continuations be (besides doing basic control flow/exception stuff).

A post that stands on its own, whether you like/care about Coffeescript/Javascript or not.

[1] http://gfxmonk.net/2010/07/04/defer-taming-asynchronous-java...