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Below you will find a compilation of links to websites of professional societies and organizations as well as some of our favorites that include both technical and PHP programming.

Professional Societies and Organizations

Chemical

American Chemical Society
The American Institute of Chemical Engineers (AICHE)

Civil/Structural

American Concrete Institute (ACI)
American Institute of Steel Construction (AISC)
American Iron and Steel Institute (AISI)
American Society of Civil Engineers (ASCE)
American Water Resources Association (AWRA)
American Welding Society (AWS)
Association of Iron and Steel Engineers (AISE)
Concrete Reinforcing Steel Institute(CRSI)
Construction Specifications Institute (CSI)
Steel Joist Institute
Structural Engineers Association International

Electrical

Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Instrumentation, Systems and Automation Society (ISA)
National Electrical Manufacturers Association (NEMA)
Underwriters Laboratories (UL)

General Technical

National Society of Black Engineers (NSBE)
National Society of Professional Engineers (NSPE)
Society of Hispanic Professional Engineers (SHPE)
Society of Women Engineers (SWE)

Health, Safety and Environment

American Academy of Environmental Engineers
American Society of Safety Engineers
Air and Waste Management Association (AWMA)
Human Factors and Ergonomics Society (HFES)
National Association of Environmental Professionals

Mechanical

Air Conditioning & Refrigeration Institute Standards
American Gear Manufacturers Association
American Society of Heating Refrigeration and Air Conditioning Engineers (ASHRAE)
American Society of Mechanical Engineers (ASME)
American Society of Plumbing Engineers
Association for Facilities Engineering
Hydraulic Institute
Institute of Industrial Engineers
Society of Fire Protection Engineers
Society of Manufacturing Engineers (SME)
American Institute of Mining, Metallurgical and Petroleum Engineers

Mining, Petroleum, and Energy

American Gas Association (AGA)
American Institute of Mining, Metallurgical, and Petroleum Engineers
American Petroleum Institute (API)
Association of Energy Engineers
Society for Mining, Metallurgy, and Exploration
Society of Petroleum Engineers (SPE)

Standards, Testing, Materials, Coatings, and Corrosion

American Galvanizers Associations (AGA)
American National Standards Institute (ANSI)
American Society for Nondestructive Testing (ASNT)
American Society for Testing and Materials (ASTM)
International Standards Organization (ISO)
National Association of Corrosion Engineers (NACE)
Society of Protective Coatings

Other

American Association of Wind Energy
American Institute of Aeronautics and Astronautics (AIAA)
American Institute of Architects (AIA)
American Society of Agricultural Engineers (ASAE)
American Society of Naval Engineers, Inc
American Nuclear Society (ANS)
Society of American Military Engineers
Society of Plastics Engineers
Vibration Institute

Our Favorites

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PHP Programming / Web Development

Hotscipts.com - Internet directory of Web programming-related resources
HTML 4.01 Specification - HTML online documentation at W3.org's site.
PHP.net - "The" central point for PHP information. Online documentation and much much more.
PHPclasses.org - A repository of PHP programming-related classes and scripts.
SourceForge.net - Hosts many open source software projects/applications.