I thought this list of software licensing haikus was pretty funny.
Kinda old, thought I’d update with some other licenses:
Apache: not the GPL! / we let you reuse to sell / you break it you buy
Creative Commons: choose one from many / confused? we will help whether / simple or sample
Berkley: do not remove the / notice, nor may you entangl’ / berkeley in your mess
Artistic: tell all if you change / package any way you like / keep our copyright