For those interested, http://chrisdone.com/posts/2010-04-05-haskell-json-service-tryhaskell.html I've updated the Haskell JSON service I whipped up a month ago and made it much simpler, written some sample code for how to include this in your blog or tutorials. It supports the JSONP way of making requests, so you can use it from any domain. Thanks to that, Try Haskell can now be run by anyone who has the HTML/JavaScript code and an internet connection, which is nice. Lowers the barrier a bit for people who'd like to write interactive tutorials but can't be bothered messing around with FastCGI and a web server. Don't worry about using it too much, it's on a Linode account with 200GB of bandwidth a month. AJAX requests really won't use that up. ;) I hope someone uses it on a tutorial. *Hint hint* BONUS. Hope you guys find it useful!