haskell Yesod is a framework designed to foster creation of RESTful web application that have strong compile-time guarantees of correctness. It also affords space efficient code and portability to many deployment backends, from CGI to stand-alone serving. The Yesod documentation site <http://www.yesodweb.com/> has much more information, tutorials and information on some of the supporting packages, like Hamlet and Persistent.