Kirby Tennis Club - www.kirbytennisclub.co.uk/

Matt Watson, Kirby Club Coach's own website - www.mwtenniscoaching.co.uk/

UKRSA - www.ukrsa.com - UK Racket Stringers Association

USRSA - www.usrsa.com - US Racquet Stringers Association 

Grandslam Stringers - www.grandslamstringers.com - stringing information and lots more

http://www.britishtennisparents.com/default.asp - a website aimed at parents of tennis players giving lots of valuable advise and developed by the LTA with the input of many others including Andy Murray's mother Judy