Canadian Mineral Analysts - Includes association details, a member list, contact information, a guestbook, and related chemistry sites. AOAC International - Established over 100 years, the association of analytical communities focuses on method validation and laboratory quality assurance. Provides illustrated publication list with prices, available from Gaithersburg, MD. Society for Applied Spectroscopy - Calendar, information regarding the society, its journal, Applied Spectroscopy, related spectroscopy events, publications and membership payment over secure server connection from Frederick, MD. The Interwinery Analysis Group - Information on the organisation, annual seminar, newsletterand membership. Includes comparative analyses and evaluation of the results in the field of wine. Based in Australia. Co-Operation on International Traceability in Analytical Chemistry - CITAC supports laboratories evaluating measurement uncertainty with this site and with the recently published guide. Includes contacts for participants worldwide. Eurachem - Network of organizations aiming at a system for the international tractability of chemical measurements, providing newsletters back to 1996, forthcoming events, liaison groups, twitter feed, and links to national sites in Europe .