Solar System & Astronomy

National Air and Space Museum
http://www.nasm.si.edu/

Space Day
http://www.spaceday.com/

StarChild: A Learning Center for Young Astronomers
http://starchild.gsfc.nasa.gov/docs/StarChild/StarChild.html

Exploring Planets in the Classroom
http://www.spacegrant.hawaii.edu/class_acts/index.html

Allstar Network (Aeronautics)
http://www.allstar.fiu.edu/

Astronomy for Kids
http://www.dustbunny.com/afk/

Constellations
http://www.astro.wisc.edu/~dolan/constellations/

Solar System Simulator
http://space.jpl.nasa.gov/

Live from the Sun
http://passport.ivv.nasa.gov/sun/

NASA Factoids
http://www-pao.ksc.nasa.gov/kscpao/factoids/shutttoc.htm

NASA Homepage
http://www.nasa.gov

Space Link
http://spacelink.nasa.gov/.index.html