You can find information & resources of science, biotechnology, chemistry, ecology, technology, science resources, mechanical engineering, earth sciences, astrophysics, nuclear & molecular at PortalScience.com
Forest Science & Forestry Research
An online portal to search CAB International's databases and information on a range of forest subjects. This site requires a paid subscription, though a free 24 hour trial is available.
http://www.forestscience.info/