Back in 2009 I wrote a four-part tutorial on monads for Clojure programmers. It can be considered an introduction to the algo.monads library.
The tutorial was published on a blog hosted at onclojure.com, which seems to have disappeared in the meantime. Dan Boykis recovered it from archive.org and reformatted it in Markdown, ready for reading right here on GitHub. For now this repository contains just this copy of the original tutorial, but I may update it in the future.