Since 2005
ScienceBiz.com offers links to websites related to biochemistry, reliability engineering, chemist, morality, medical physics, mechanical engineering, earth sciences, materials, astrophysics, nuclear, software, molecular and much more.
Listings
http://www.acp.org/
http://www.aps.org/
international organization concerned with the thermophysical properties of water and steam, particularly those properties of high-temperature steam, water, and aqueous systems that are relevant to thermal power cycles and other industrial applications.
http://www.iapws.org/
promoting gender equity in physics; featuring news, links.
http://www.hypatiamaze.org/