Hi cafe, I've been delaying the announcement of LearnByHacking.org as I wish to add more features, but some of you may be interested in it as is. The web app is inspired by and, to some degree, a lighter-weight clone of School of Haskell. I am currently using it as glorified blog that provides a means for collaborating with others on posts and include active code. For those unfamiliar with SoH, that is, code that users can execute with a single click and modify. There are lots of things on the TODO list, so if anybody wants to hack, please join in. Cheers, Deian