NEW! From the Exploratorium "Evidence: how do we know what we know? http://www.exploratorium.edu/evidence/
The Nobel e-Museum with information about Nobel and Nobel Laureates at http://www.nobel.se/
Listen to Earthquakes! on a USGS Internet site at http://quake.wr.usgs.gov/more/listen/
Ask The Experts: - A Scientific American page: http://www.sciam.com/askexpert/
Science Daily: - today's headlines; research news: http://www.sciencedaily.com/
Why Files: - the science behind today's news: http://whyfiles.org

Space Science

Geological Time Machine: http://www.ucmp.berkeley.edu/help/timeform.html
Spaceweek www.spaceweek.org
NASA www.nasa.gov
Explorit Astronomy Club Favorite Sites

More Fun Science

Bat Conservation International - an informative site at http://www.batcon.org/
Pets, Vets, You, and Dr. Sue: - an interesting and useful site at http://vme.net/dvm/DrSue/
San Diego Zoo - has fast loading graphics at http://www.sandiegozoo.org/.
ScienceNet: - http://www.sciencenet.org.uk/

Museums:

Boston Museum of Science: - http://www.mos.org/
California Academy of Sciences: - http://www.calacademy.org/
Effie Yeaw Nature Center: - http://www.effieyeaw.org/
Exploratorium: - http://www.exploratorium.edu/learning_studio/
Franklin Institute Science Museum: - http://sln.fi.edu/
Miami Science Museum: - http://www.miamisci.org/
Oregon Museum of Science and Industry: - http://www.omsi.edu/
Science Museum of Minnesota: - http://www.sci.mus.mn.us/
Smithsonian Institution: - http://www.si.edu
Tech Museum of Innovation: - http://www.thetech.org/

Other useful and interesting links:

The Yolo Basin (Wetlands) Foundation - http://www.yolobasin.org/

Science for teachers and other scholars of all ages:

Access Excellence: - for high school teachers: - http://www.accessexcellence.org
Eisenhower National Clearinghouse for Mathematics and Science - http://www.enc.org:80/index.htm
The Hubble Telescope in the the classroom - http://www.stsci.edu/pubinfo/Latest.html.
Interactive Virtual Lab - http://www.biointeractive.org - Howard Hughes Medical Institute interactive pages for high school and college students and teachers.
Nature - the international weekly journal of science: - http://www.nature.com/
New Scientist: - http://www.newscientist.com/
ScienceIQ: - http://www.ScienceIQ.com/