a history of monad tutorials

Here's a historical overview of monad tutorials since Phil Wadler's original observation that monads can be implemented in Haskell and become extremely useful.

When I wrote this, I originally wanted to do a real history, with an analysis of how people have tried to teach monads over the years, but I guess this is about all I have time for. Dates, authors and blurbs. Corrections/additions always welcome! As you can tell, I have not read them all.

Edit 2007-08-17: I have updated and moved this timeline to Haskellwiki. This might be useful when some future Haskell archeologist tries to figure out the precise "ah-ha!" moment when every single programmer in the world 'got' monads.