You can find information & resources of science, biotechnology, chemistry, ecology, technology, science resources, mechanical engineering, earth sciences, astrophysics, nuclear & molecular at PortalScience.com
ChemIndustry.com
World wide search engine for the chemical and related industries.
http://www.chemindustry.com/
Surfactants Virtual Library
This site contains links to surfactant and detergent related web sites. With information on companies, research centers, researchers, phenomena such as foaming, detergency, micelles, surface tension, emulsions, microemulsions and applications.
http://www.surfactants.net/
UK Process Engineering Companies
A web site featuring UK based process engineering companies, technical information and news items.
http://www.processdirectory.com/