Science

http://www.refdesk.com/factsci.html  Ref Desk - Science

http://www.webelements.com  Periodic Table

http://pearl1.lanl.gov/periodic/default.htm  Periodic Table

www.enature.com  Animals

www.wunderground.com  Weather

http://antwrp.gsfc.nasa.gov/apod/astropix.html Astronomy Picture of the Day

http://www.sciam.com/    Scientific American Magazine

www.nasa.gov   NASA

http://www.spaceweather.com/   Space Weather

http://www.ksc.nasa.gov/  Kennedy Space Center