I decided to find out for myself. You can find the results at http://jekor.com/article/is-haskell-a-good-choice-for-web-applications Included is the source code for the web application powering http://www.vocabulink.com/ The source is roughly 2,000 lines of Haskell, along with some SQL and JavaScript. It's written in literate style and includes a 75-page PDF. It demonstrates and explains how to: * use FastCGI to communicate with a web server (nginx in this case) * move data to and from a PostgreSQL database (HDBC) * authenticate users with cookies * interact with users via asynchronous JavaScript and JSON (AJAJ) * collect data with HTML forms (formlets) * communicate with users via email * cache with memcached * implement a custom forums system (with threaded comments) I make no claims that the code is elegant or idiomatic. It is however real code that's running "in the wild". And I hope it's useful to anyone else considering doing web development in Haskell. I welcome and encourage your feedback!