International Fluid Power Spciety  -   http://www.ifps.org

British Fuild Power Association  -   http://www.bfpa.co.uk

Canadian Fuild Power Association  -   http://www.cfpa.ca

Intl Fluid Power Research Network  -   http://fluid.power.net

Fluid Power Distributors Association  -   http://www.fpda.org

ASSOFLUID   -   http://www.assofluid.it