Here are some links you may find useful and interesting.

 

www.thewackyworldoftennis.com      The World's Best Tennis Cartoon Book

www.fittoplay.com                          Improve Your Tennis Fitness

Tennis Tactics And Strategies Blog    Learn all about tennis strategies , tactics, and winning patterns.

www.Tenniscoachmarketing.com       A marketing manual for tennis coaches 

www.tennistips.net                         Some great tennis tips.