Automotive Who's Who Some searches are free, others require a subscription. "AUTOMOTIVE WHO'S WHO®, Inc. publishes a database of North American automotive original equipment (OEM) tier suppliers and key employee contacts. Our list is intended for use by a wide range of industry professionals including top executives, site managers, engineers, buyers, consultants and researchers, etc. Our comprehensive directory covers the automotive manufacturing supply chain comprised of Tier I, II, and III suppliers of parts, components, assemblies and related services."
Google Patents Search both U.S. and international patent offices.
Science.gov Provides links to a wide variety of scientific resource materials, indexes, and statistics produced by U. S. departments, agencies, and related institutes and labs.
Skills Commons "Your FREE and OPEN digital library of Workforce Training Materials Preparing the Workforce for 21st Century Employment through TAACCCT"