The Output/Outcome/Downstream Impact Blues, a song by Terry Smutylo.
In a parallel universe, international development evaluation professionals would be required to memorize and sing this song once a year, or anytime they feel a little blue about their work. I am going to post it where I can see it every day. I am still looking for a working link to the audio track. I'd like to know what the tune sounds like.
In a more visual format, I also liked the cartoon-like drawings in "The Most Significant Change."