my code has a side effect: learning!

So I'm working through the exercises in Real World Haskell. Here's what I've got so far. As of this writing, I'm in the middle of chapter 4. RWH totally deserves all the buzz it's been getting; it's very approachable and well-written, and my Haskell is improving rapidly. The book is still free online, but I bought the printed copy, in large part because Bryan O'Sullivan gave such a great talk at OSCON.

My earlier Haskell project had stalled out due to my not being very good at the language yet. What I want to do is build a compiler for Logo that produces JavaScript, with the turtle graphics on a canvas tag. Logo is an acceptable Lisp! I'd love to see it get more use.

Interestingly, though:

• There's already a beautiful Logo implementation that runs in javascript: papert.
• Mark is working on something like papert, but for Processing -- he wants to put your Processing sketches, how you say, in the cloud.
  
• There are some really nice (and free!) introductory CS texts that feature Logo. Brian Harvey has a pretty serious three-volume set. And there's a version of How to Think Like a Computer Scientist done in Logo.