American Chemical Society (ACS)

 American Institute of Chemical Engineers

 American Mold Builders Association

 American National Standards Institute (ANSI)

 American Plastics Council (APC)

 American Plastics Council (APC) - Automotive-Specific Website

 American Plastics Council (APC) - Hands on Plastics - A Scientific Investigation Kit for teachers and students

 American Plastics Council (APC) - Plastics and your Health

 American Plastics Council (APC) - Teaching Plastics - Your virtual plastics classroom

 American Plastics Council (APC) - Trade Asscociation Website

 American Society for Quality

 American Society for Testing and Materials (ASTM)

 American Society of Mechanical Engineers (ASME)

 ASM International

 Association of Plastics Manufactuers in Europe

 Association of Rotational Molders

 Automotive Industry Action Group

 Automotive Recyclers Association

 British Plastics Federation

 California Film Extruders & Converters Association

 Canadian Plastics Industry Assocation

 Composities Fabricators Association

 Connecticut Plastics

 Corrugated Polyethylene Pipe Association

 Expanded Polystyrene Molders Association

 Fiber Source - American Fiber Manufacturers Association and the Fiber Economics Bureau

 Flexible Packaging Association

 Future Scientists and Engineers of America (FSEA)

 Industrial Designers Society of America (IDSA)

 Inter-Society Color Council (ISCC)

 International Association of Plastics Distributors

 Japan Society of Polymer Processing (JSPP)

 JETS - Junior Engineering Technical Society

 National Association for Plastic Container Recovery (NAPCOR)

 National Association of Manufacturers

 National Research Councol (NRC) and Industrial Materials Institute (IMI) of Canada

 National Tooling & Machining Association

 New Jersey Manufacturing Extension Program

 North American Die Casting Association (NADCA)

 Plastic Bag Association

 Plastics Institute of America

 Poly Home Page - Division of Polymer Chemistry Inc. of the American Chemical Society

 Polymer Science Learning Center - Multimedia Polymer Education

 Polymer Science Learning Center - Plastics for Kids  - For young students

 PolymerOhio - Ohio\'s processors, materials suppliers, manufacturers, mold builders, etc.

 Polystyrene Packaging Council

 Polyurethane Foam Association

 Polyurethane Manufacturers Association

 Royal Society of Chemisty

 Société Française des Ingénieurs des Plastiques (SFIP) - (France)

 Society for Maintenance and Reliability Professionals

 Society for the Advancement of Material and Process Engineering

 Society of Automotive Engineers

 Society of Plastics Engineers

 Society of Plastics Engineers International Organization

 Society of Rheology

 Society of the Plastics Industry, Inc. (SPI) - NPE - The world\'s plastics showcase

 Society of the Plastics Industry, Inc. (SPI) - Plastics USA - North America\'s plastics marketplace

 Society of Vacuum Coaters

 The Wire Association International, Inc.

 Tooling & Manufacturing Association

 Vinyl Institute

 Vinyl Institute - Vinyl By Design - Resource for building design professionals

 Vinyl.org - One material, infinite uses

 Women in Packaging