Colony Beach and Tennis Resort
1620 Gulf of Mexico Drive Longboat Key, FL 34228 (941)383-6464 Recently rated the #1 Tennis Resort in the US, this classy spot also has excellent dining.  The mixed use that includes owned units in the resort gives an odd feeling at times.

Laurel Oak Country Club
You too can join the gated country club where tennis queen Monica Seles lives.  Then you could play on the twelve clay tennis courts with Hydrocourt irrigation.

Longboat Key Hilton Beach Resort
4711 Gulf of Mexico Drive Longboat Key, FL 34228 (941)383-2451 This intimately sized Hilton, with just 102 rooms and suites offers tennis lessons and a beautiful stretch of beach on northern Longboat.  I love biking in this area too.

The Resort at Longboat Key Club
301 Gulf of Mexico Drive Longboat Key, FL 34228 (941)383-8821 With 38 courts, The Resort was rated a top Fifty tennis resort by Tennis Magazine.  Clinics, private and semi-private lessons are available.

Tennis from About.com 
Guide Jeff Cooper brings you lessons like the evolution of pro forehand grips, to understanding and preventing injuries.