Monads explained in Clojure by Brian Marick (vimeo.com)

Note, this is a repost of http://news.ycombinator.com/item?id=4992062 which went overlooked, but I added a vimeo album to link to all 4 videos.

Great, glad you reposted this, I loved his introduction to the tutorial: "there is an ancient mayan profecy that someone every person on earth will do a turorial on Monads" :)