Since 2005
ScienceBiz.com offers links to websites related to biochemistry, reliability engineering, chemist, morality, medical physics, mechanical engineering, earth sciences, materials, astrophysics, nuclear, software, molecular and much more.
Listings
both amateur and professional.
http://www.aavso.org/
serves the entire astronomical community by providing modern, major facilities to qualified scientists from many institutions.
http://www.aura-astronomy.org/
international non-profit organization offering educational programs and products, research publications, and membership benefits.
http://www.astrosociety.org/
Events, links, articles from leading Czech and foreign magazines.
http://www.astro.cz/
forum for support and networking between lesbian, bisexual, gay, transsexual, etc. members of the astronomical community.
http://www.noglstp.org/
group of junior high & high school students from the Denver, Colorado Metro area. These students share a common interest in astronomy & want to share that interest with others.
http://www.iaas.org/
promotes and safeguards the science of astronomy in all its aspects through international cooperation. The sole internationally recognised authority for assigning designations to celestial bodies and surface features on such bodies.
http://www.iau.org/
organized every year in Europe. The 70 participants (between 16 and 24 years old) work for 3 weeks in 8 working groups on small astronomy research projects.
http://www.iayc.org/
nonprofit sponsoring educational astronomy programs in Palatine, IL. Links to astronomy articles and tutorials online.
http://www.planets.org/
involved in the promotion of astronomy and scientific temper in educational institutions.
http://www.space-india.org/
working to bring awareness among children, students, and the general public about astronomy, space, and technology.
http://www.planetaryyouth.org/