Science

• Science (general)
• Open Courseware (OCW)
   
  • Chemistry
  • Open Courseware (OCW)
     
  • Physics
  • Open Courseware (OCW)
  • Applied Physics (OCW)

• chemistry.org (US), American Chemical Society (ACS) - represents professionals at all degree levels and in all fields of chemistry and sciences that involve chemistry
• Royal Society of Chemistry (RSC) - organisation in Europe for advancing the chemical sciences
• WWW Chemistry Guide - collects and independently annotates useful chemistry sites

• Bristol University (UK), Molecule of the Month - each month a new link added to list, links point to university Chemistry Depts or commercial sites where useful info can be found about particularly interesting molecules
• Cambridge University (UK), Two Thousand of the Best Chemistry Sites - Chemists in the Academic World, journals, learned societies, on-line clubs, companies, chemical data, university depts
• ChemSpy.com (US), Internet Navigator for the Chemical Industry - follow updates and science news
• ChemWeb.com (US), Central to Science - access to the information chemists need to enhance research, product development, self-development, education, businesses in Chemistry and related disciplines
• Organic Chemistry Portal - overview of recent topics, interesting reactions, and information on important chemicals
• Royal Society of Chemistry (RSC) (UK), Journals, Books and Databases
• WebElements Periodic Table (UK) - about the chemical elements: Elements, Compounds, Periodicity, Books, News, Essentials, History, Contents, Uses, Geology, Biology, Electronegativity, Bond enthalpies, Lattice energies, Physics, Pictures, Allotropes, Crystal structures, Thermochemistry, Atoms, Isotopes, NMR, Orbital properties, forum