LibGuides: Mechanical & Aerospace Engineering: Useful websites

Societies and organizations

AIAA
American Institute of Aeronautics and Astronautics
ASM International
The Materials Information Society
ASME
American Society of Mechanical Engineers
Engineering Council
FAA
Federal Aviation Administration (site includes FAA Airworthiness Directives)
IEEE
Institute of Electrical and Electronics Engineers
IET
Institution of Engineering and Technology
IMechE
Institution of Mechanical Engineers
RAeS
Royal Aeronautical Society
SAE
Society of Automotive Engineers

Gateways to engineering information on the Web:

efunda (Engineering Fundamentals)
Links to concise and reliable information on a wide range of engineering basics as well as providing scientific calculators, formulae, properties ...
MatWeb: the Online Materials Information Resource
Data sheets of material properties for polymers; metals; ceramics; semiconductors.