ASRA - American Society of Regional Anesthesia
http://www.asra.com/

ESRA - European Society of Regional Anaesthesia
http://www.esraeurope.org/

Netzwerk zur Sicherheit in der Regionalanästhesie & Akutschmerztherapie 
http://www.net-ra.eu/

NYSORA – New York School of Regional Anesthesia
http://www.nysora.com/

Virtual Anaesthesia Machine
http://www.anest.ufl.edu/~eduweb/vam/