International Liquid Crystal Society, http://www.ilcsoc.org/
Centre for Scientific Culture “E. Majorana”, Erice (TP) Italy, http://www.ccsem.infn.it/
International School of Liquid Crystals, http://www-th.bo.infn.it/islc/
The British Liquid Crystal Society, http://blcs.eng.cam.ac.uk/
The Japanese Liquid Crystal Society, http://jlcs.jp/en/