GlobalSpec is a search engine and information resource for the engineering, industrial and technical communities. We help you quickly find industrial parts, specifications and services.
McMaster-Carr is a supplier to industrial and large commercial facilities worldwide specializing in quick and accurate delivery of maintenance materials and supplies.
HowStuffWorks explains hundreds of subjects, from car engines to lock-picking to ESP, using clear language and tons of illustrations. We do the research so you don't have to.
IEEE, the world's leading technical professional association, fosters innovation through publications, conferences, standards development, and member collaboration.
Material property database with data shhets of thermoplastic and thermoset polymers such as nylon, polycarbonate, polyethylene; metal alloys, aluminum, steel, titanium, nickel, cobalt, and zinc alloys; ceramics, lubricants. Free search too...