The European Society of Rheology, ESR
http://www.rheology-esr.org/Index.php
Belgian Group of Rheology
http://cit.kuleuven.be/ltrk/bgr/bgr.html
Società Italiana di Reologia
Sociedade Portuguesa de Reologia
Grupo Español de Reología
http://www-en.us.es/ger/main_esp.html
The Society of Rheology
Polymer Processing Society
http://www.poly-eng.uakron.edu/pps
Rheology Laboratory
http://www.mie.utoronto.ca/labs/rheology