The Mathematical Association - British mathematics teachers' association. It has nearly 2,000 members from all levels of mathematics teaching. Mathematics Foundation of America - The purpose of MFOA is to ensure that the mathematically talented high school student receives mathematics education appropriate for a future mathematician by providing suitable summer programs and mentors. New Zealand Mathematical Society Norwegian Mathematical Society - Brief contact details. The OpenMath Society - An emerging standard for representing mathematical objects with their semantics, allowing them to be exchanged between computer programs, stored in databases, or published on the web.
Site has details of membership, meetings and standards.
Polish Mathematical Society, Cracow Division - Contact details, committee members. Resource Modeling Association - Working in the application of models to resource management. Contact and meetings details, online newsletter. News, members, conferences, activities, journals. Membership information is also available.