Hello, I would like to thank everyone for their feedback on the monad tutorial I posted earlier. Based on that feedback, I have expanded and corrected the tutorial at www.nomaware.com/monads/html/index.html The primary changes are: - vastly expanded section on monad transformers - additional examples of monad transformers, including multiple transformers in a stack - added examples for liftM, guard, ap and msum - consistent use of "action" in IO monad "computation" in all others - made language more precise when discussing the IO type constructor - fixed typos, cleaned up some code in examples I am sufficiently pleased with this version to call it 1.0, but I still welcome any and all feedback. Thanks, Jeff Newbern -- Jeff Newbern <jnewbern@nomaware.com> Nomaware, Inc.