wai-routes - Type safe routing framework for wai
Scratch - Scratch is the programming language & online community where young people create stories, games, & animations.
Yesod - Yesod is a development tool used to create highly efficient websites and web applications from the ground up. Yesod includes almost everything you need to build a website, from templates to routing and execution. Read more about Yesod.
EduBlocks - Making the Transition from Scratch to Python easier.
Scotty - Scotty is a Haskell framework inspired by Ruby's Sinatra.
Snap - Snap (formerly BYOB) is a visual, drag-and-drop programming language.