Hope is a system for web applications written in Haskell. It is still in its infancy. This is a live demo of Hope, with the Blob2 and Halbum2 modules.

You can check out Hope using darcs:

darcs get --partial http://www.cs.chalmers.se/~bringert/darcs/hope

Be sure to read INSTALL for requirements and instructions for building and installing Hope.