Originally Posted by Tight Lines
Coach Mauro at thetennisvault.com deserves a mention. It's one of the best sites for beginners.
Have picked up some great insight and different ways to teach various skills from both Kyril and Mauro. Not just for beginners.
Originally Posted by charliefedererer
Surprised no one has mentioned John Yandell's site, tennisplayer.net
All of the above sites mentioned are good, but for sophisticated analysis as a guide for better stroke production it is hard to beat tennisplayer.net
A 3rd mention for Yandell's site. Highly recommend it. FYB, Salzenstein, Lock and Roll and most of the others on the list all provide some excellent instruction. The various, different teaching styles should resonate with different people. Often it is great seeing a skill taught with a different approach or emphasis.