» Active Sports Tennis Ball Machines    Sales and service of tennis court equipment including tennis ball machines, ball mowers, and serving machines.    http://www.active-sports.com

» Bathroom Tennis    Visualization training and tennis instruction with the tennis shower curtain and mental training booklet.    http://www.bathroomtennis.com

» Icon Tennis Direct.    Reviews videotapes and makes suggestions for improvements to the players game.    http://www.angelfire.com/fl5/icontennisdirect/

» Inga-Vid Productions    Offering a DVD instruction set teaching the modern fundamentals of tennis.    http://www.fundamentalsoftennis.com

» Lobster Tennis Ball Machines    Manufactures and sells ball machines and ball hoppers.    http://www.lobsterinc.com

» Mind Training for Tennis    A mental training visualization cd.    http://www.tennispsychology.com

» My Best Tennis    Audio Tapes to help mental toughness, strategy, and stroke technique.    http://www.mybesttennis.com

» MyCoachOnline Instructs Tennis    Online video instruction of tennis basics. Including grips, strokes and court strategies.    http://www.mycoachonline.com/Tennis/index.lasso

» Oncourt Offcourt    Sells tennis training equipment and systems.    http://oncourtoffcourt.com

» Peak Performance Products Inc.    Manufactures and sells tennis training aids and equipment, tennis swing trainer for tennis elbow injury, videos and accessories.    http://www.practicehit.com

» PracticeHit Tennis Swing Trainer    A swing trainer with a stable support base is attached to ball support shaft to practice groundstrokes.    http://www.practice-swing.com

» Simple Tennis    Sells downloadable tennis video lessons including the forehand, backhand, volley and serve. The tennis video lessons are taught by Scott Pedersen, a certified Tennis Canada teaching professional.    http://www.simpletennis.com

» Smart Tennis Audio Series    A set of audio cds that covers topics such as junior tennis, match play, and how to play under pressure.    http://www.tennisinstructioncd.com

» SportPartners.net    Videos, books, and other training aids.    http://www.sportpartners.net/

» Tennis Zones    Sells instructional videos that cover stroke technique.    http://www.tenniszones.com

» The Valverde System    A cd set that discusses how to improve mental-toughness based upon light.    http://www.bmentallytough.com/

» Tom Avery Tennis Videos    Offers instructional videos and DVDs.    http://www.tomavery.com

» Unlimited Doubles    A book that covers winning doubles tennis instructions.    http://www.unlimitedtennis.com