General
England Squash - The Governing body of Squash in England
European Squash Federation (ESF) - The European Governing Body
World Squash Federation - The International federation for squash (includes Rules of Squash)
Squash Now - The most popular squash news site
The Squash Player - Internet magazine with opinions & editorial
Professional Squash Association (PSA) - The representative body of male squash players throughout the world
Women's International Squash Players Association (WISPSA) - The representative body of female squash players throughout the world.

Competitions
British Open
World Open
UK National League
UK Super League
World Squash Day

Manufacturers
Head
Karakal
Prince