You can find information & resources of science, biotechnology, chemistry, ecology, technology, science resources, mechanical engineering, earth sciences, astrophysics, nuclear & molecular at PortalScience.com
Non-profit scientific and technical organization for aerospace professionals and students. Bilingual site in English and French. Comprehensive source of information about the organization plus technical documents and information about meetings, events, competitions, and scholarships.
The national trade association of the UK aerospace industry and its member companies. Overview, news, events, on-line forums, products and services database, contacts by subject, and aerospace career information.
U.S. Trade association representing the nation's leading aerospace manufacturers. Overview, news, publications, issues and policy information, calendar of events, aerospace statistics, and member resources.