Astronomy

• AstroWeb - Astronomy Resources on the World Wide Web
  http://www.stsci.edu/science/net-resources.html
• Resources for Research Astronomers
  http://www.stsci.edu/science/
• Space Telescope Science Institute
  http://www.stsci.edu/
  Home of the Hubble Space Telescope. Some of the most incredible pictures in human history are at this site, and you can download any of them. There is also information on the telescope, the institute and links to still more sites

Botany

• Andean Botanical Information System
  http://ucjeps.berkeley.edu/abis/
  A collection of information from the floristic and systematic investigations of the phanerogams of Andean South America.

Biology

• Photobiology Online
  http://www.kumc.edu/POL/index.html
  A cooperative presentation of the European and American Societies for Photobiology from the University of Kansas Medical Center and from the Central Research Institute for Chemistry of the Hungarian Academy of Sciences.

Chemistry

• Chemistry Resources courtesy of UCLA
  http://www.chem.ucla.edu/chempointers.html

Geology

• National Earthquake Information Center by the U.S. Geological Service
  http://wwwneic.cr.usgs.gov:80/
  Current information about earthquakes occurring around the world. Products and services are available –maps, charts, and plate tectonics information.