Powdered Metal/Sintering - www.westernsintering.com

Society of Plastics Engineers - www.4spe.org

The Plastics Web - Material Property Datasheets (Free Registration Required) - www.ides.com

Material Property Datasheets (No Registration Required) - www.matweb.com

The Society of the Plastics Industry - www.plasticsindustry.org

Thermoplastic Elastomer Technology - www.glscorporation.com

Dupont - www.dupont.com

SABIC (Formerly GE Plastics) - www.sabic.com

BASF The Chemical Company - www.basf.com