The Ecological Society of America (ESA) is a nonpartisan, nonprofit organization of scientists founded in 1915 to: promote ecological science by improving communication among ecologists; raise the public's level of awareness of the importance of ecological science; increase the resources available for the conduct of ecological science; and ensure the appropriate use of ecological science in environmental decision making by enhancing communication between the ecological community and policy-makers. Ecology is the scientific discipline that is concerned with the relationships between organisms and their past, present, and future environments. These relationships include physiological responses of individuals, structure and dynamics of populations, interactions among species, organization of biological communities, and processing of energy and matter in ecosystems.

The European Geosciences Union (EGU), founded in 2002 as a merger of the European Geophysical Society (EGS) and the European Union of Geosciences (EUG), is a dynamic, innovative, and interdisciplinary learned association devoted to the promotion of the sciences of the Earth and its environment and of planetary and space sciences and cooperation between scientists.

The Experimental Rocket Propulsion Society (ERPS) exists to foster and disseminate knowledge of rocket science, and thereby speed the day when access to space is truly routine. It was founded in February of 1993 to gather interested amateurs in a group that would learn about, design, build, and test liquid fuel rocket engines. Over the next eleven years, the group acquired access to rocket-engine assembly and test facilities and, more important, active members with the skills to make good use of those facilities. We've achieved a number of successes notably, the first repeated amateur launch of the same liquid-fueled vehicle within one 24-hour period.

Founded in January 1999, the society aims to promote the investigation, teaching, and application of game theory. Game theory studies strategic interaction in competitive and cooperative environments. Only fifty years old, it has already revolutionized economics, and is spreading rapidly to a wide variety of fields. It develops general mathematical formulas and algorithms to identify optimal strategies and to predict the outcome of interactions.

Geological Society of America. About GSA. Membership. Publications services. Meetings and excursions. Sections and divisions. GSA for students. Geology and public policy. Grants, awards, and medals. Employment opportunities. Education and teacher resources. Internships and mentoring programs.

Intellectual Property Owners Association supports member interests relating to legislative and international issues; provides news and educational services and networking opportunities for members; and disseminates information to the public on the importance of intellectual property rights.

IAVCEI stands for the International Association of Volcanology and Chemistry of the Earth's Interior. The Association represents the primary international focus for: (1) research in volcanology, (2) efforts to mitigate volcanic disasters, and (3) research into closely related disciplines, such as igneous geochemistry and petrology, geochronology, volcanogenic mineral deposits, and the physics of the generation and ascent of magmas in the upper mantle and crust. IAVCEI is run by an Executive Committee whose membership changes every four years. The Executive determines policies for the Association, enacting them through a series of Commissions and TaskGroups. IAVCEI aims to be outward-looking, seeks relationships with other international scientific organisations, and participates in international scientific projects. It aims also to maintain a robust publishing policy, encouraging the presentation of high caliber, volcanological research results, mainly through its premier international journal the Bulletin of Volcanology.

In order to strengthen international science for the benefit of society, ICSU mobilizes the knowledge and resources of the international science community to: Identify and address major issues of importance to science and society. Facilitate interaction amongst scientists across all disciplines and from all countries. Promote the participation of all scientistsregardless of race, citizenship, language, political stance, or genderin the international scientific endeavour. Provide independent, authoritative advice to stimulate constructive dialogue between the scientific community and governments, civil society, and the private sector.

The International Society of Arachnology is the premier international scientific society devoted to arachnology. ISA focuses on the arachnid orders Amblypygi, Araneae, Opiliones, Palpigradi, Pseudoscorpiones, Ricinulei, Schizomida, Scorpiones, and Uropygi, but not Acari, as other societies dedicated to acarology exist. Currently ISA has about 600 members from 66 countries. ISA's goals are to promote the study of Arachnology and communication of arachnological information among researchers via meetings and publications (printed or electronic).

The National Academies - Advisers to the Nation on Science, Engineering, and Medicine. The National Academies perform an unparalleled public service by bringing together committees of experts in all areas of scientific and technological endeavor. These experts serve pro bono to address critical national issues and give advice to the federal government and the public. Four organizations comprise the Academies: the National Academy of Sciences, the National Academy of Engineering, the Institute of Medicine and the National Research Council. Top News. Science in the Headlines. Science Topics. Current Projects. Career Links. Books from the National Academies Press (NAP) - read NAP books online for FREE at http://www.nap.edu/!

The National Association for Research in Science Teaching (NARST) is a worldwide organization of professionals committed to the improvement of science teaching and learning through research. Since its inception in 1928, NARST has promoted research in science education and the communication of knowledge generated by the research. The ultimate goal of NARST is to help all learners achieve science literacy. NARST promotes this goal by: 1) encouraging and supporting the application of diverse research methods and theoretical perspectives from multiple disciplines to the investigation of teaching and learning in science; 2) communicating science education research findings to researchers, practitioners, and policy makers; and 3) cooperating with other educational and scientific societies to influence educational policies.

The National Association of Biology Teachers (NABT) is "the leader in life science education." To date, more than 9,000 educators have joined NABT to share experiences and expertise with colleagues from around the globe; keep up with trends and developments in the field; and grow professionally. The National Association of Biology Teachers empowers educators to provide the best possible biology and life science education for all students.

AAPT was established in 1930 with the fundamental goal of ensuring the "dissemination of knowledge of physics, particularly by way of teaching." The Association currently has over 11,000 members in 30 countries around the world.

In 1934, a dozen pioneering science reporters established the National Association of Science Writers at a meeting in New York. They wanted a forum in which to join forces to improve their craft and encourage conditions that promote good science writing.The association was formally incorporated in 1955 with a charter to "foster the dissemination of accurate information regarding science through all media normally devoted to informing the public."

NCTM is a public voice of mathematics education, providing vision, leadership, and professional development to support teachers in ensuring mathematics learning of the highest quality for all students. Founded in 1920, NCTM is the world's largest mathematics education organization, with nearly 100,000 members and 250 Affiliates throughout the United States and Canada.