McSweeney’s has a whole series of brilliant open letters. I especially liked Liz Skoski’s “An open letter to my abandoned MA English Degree.”
Like the genie (who, as you’ve taught me, is actually a metaphor for the oppression of the mystical practices of various indigenous tribes in the Middle East) you could have granted me riches beyond my wildest imagination. But I’ll never know for sure.
There’s an index to the many other wonderful open letters at the bottom of Skoski’s Letter.