The Pickleball Promoters How-to Guide Second Edition,
updated (2014) and published by the USAPA is found here:
Michigan grown berries, cherries, peaches, apples, and pickleball. Yes! Michigan is 'growing' PICKLEBALL! Everyday in Michigan pickleball players hear the "PoP!" of the pickleball on their paddles and say, "one more game...just for the fun of it!"