International Zeolites Association - http://www.iza-online.org
Federation of European Zeolites Associations - http://www.feza-online.org
British Zeolites Association - http://www.bza.org
Czech Zeolite Group - http://www.jh-inst.cas.cz/~catsymp/czg.htm
German Zeolite Association - http://www.dechema.de/infsys/moved.htm
French Zeolite Group - http://www.gfz.enscm.fr/
ZMPC 2006 International Symposium on Zeolites and Microporous Crystals - http://www.zmpc.org