ChemSpy.com helps you to find chemistry and chemical engineering related terms, definitions, synonyms, acronyms and abbreviations. Also  scientific publications in over 20.000 different journals, physical data of chemical compounds, worldwide patents are available.

Find MSDS (Material Safety Data Sheets) with this excellent specific search facility provided by ChemSpy.com

Datasheet Locator is a free electronic engineering tool that enables you to locate product datasheets from hundreds of electronic component manufacturers worldwide. 

Heriot-Watt University Library is the lead partner in the development and delivery of EEVL, the Internet guide to engineering, mathematics and computing. EEVL is working with the Department of Mechanical and Chemical Engineering and the Department of Mathematics at Heriot-Watt University on the ShapeSearch Project funded by the EPSRC (Engineering and Physical Sciences Research Council) to source engineering parts on the Internet, through the use of 3D search engines.

eFunda stands for engineering fundamentals. Its mission is to create an online destination for the engineering community, where working professionals can quickly find a variety of information to aid in the solution of complex design problems. There are some 30 000 pages here!

iCrank.com has been designed to be the perfect starting page for a mechanical engineer. A wealth of mechanical design tools, charts, software and other resources are to be found here.

Integrated Design Engineering Systems (IDES) offers Resin Source, a tool to quickly find a plastic. Simply enter search text and IDES.com will present a list of materials matching your criteria. From this list, you can review a summary data sheet or access IDES Sourcing for manufacturer and distributor contact information, samples ordering, request for quotes, and more.

One of the most powerful Semiconductor Industries search engines.

Search the ScienceDirect Journal Title Finder. Since its commercial launch in 1999, ScienceDirect has evolved from a web database of Elsevier Science journals to one of the world's largest providers of scientific, technical and medical (STM) literature.

Scirus is the most comprehensive science-specific search engine available on the Internet. Driven by the latest search engine technology, it enables scientists, students and anyone searching for scientific information to chart and pinpoint data, locate university sites and find reports and articles quickly and easily. It was launched by Elsevier Science, the leading international publisher of scientific information.

Webopedia is a free online dictionary for words, phrases and abbreviations that are related to computer and Internet technology. Webopedia provides easy-to-understand definitions in plain language, avoiding the use of heavy jargon when possible so that the site is accessible to users with a wide range of computer knowledge.