Want to get a leg up on the competition? There are several good Pickleball Strategy Guides that are full of tips to help you improve your game.
Take a look at the links below:

Playing Tips by Bill Booth:
http://www.usapa.org/learningtips/index.php?u=playingtips_bybill.html
The USA Pickleball Association offers a great strategy guide full of useful ideas to improve your game.

Coach Mo's Strategy Guide:
http://www.pickleballcoach.com/files/Pickleball%20Strategy%20Guide.htm
Coach Mo at PickleballCoach.com offers a high quality free strategy guide as well as DVD's, Newsletters, and Forums. Check out the guide and perhaps purchase one of his DVD's to help you improve your game!

Highlights from The Official Pickleball Handbook:
http://www.pro-litesports.com/PlayingTips.html
Pro-Lite Sports makes some great Pickleball Paddles, but they also offer a free strategy guide to read over. They also offer a full length book on the topic if you want to learn more.