Don't get me wrong. I respect you work, and I believe Yesod is awesome. Actually for the project I'm working on, I seem to try to emulate Yesod with happstack. I even tried to switch to Yesod midway, but as soon as I tried to reimplement authentication I hit a brick wall. I checked [1] and [2] and even checked the haskellers source. [3] has a bit better documentation, and if only had checked the github site, I might have chosen otherwise. Compared to [4] and [5] where I could easily see examples with documentation. Keep up the good work. I know I will keep checking the book frequently :). 1. http://hackage.haskell.org/package/authenticate-0.9.1.3 2. http://www.yesodweb.com/book/auth 3. http://hackage.haskell.org/package/yesod-auth-0.5.0 4. http://hackage.haskell.org/package/happstack-auth 5. https://github.com/mcmaniac/happstack-auth/tree/master/demo -- Mats Rauhala MasseR