http://www.seds.org/billa/tnp

"The Nine Planets: A Multimedia Tour of the Solar System," by Bill Arnett Excellent pictures, glossary, and other info.

http://bang.lanl.gov/solarsys/earth.htm

"Views of the Solar System," by Calvin Hamilton

Nice pictures, lots of text, fact sheets, and glossary. Essentially an on-line text.

http://pds.jpl.nasa.gov/planets

"Welcome to the Planets." Nice pictures, fact sheets, and other info.

http://nssdc.gsfc.nasa.gov/photo_gallery/photogallery-earth.html

National Space Science Data Center A NASA site with lots of pictures, fact sheets, glossary.

http://www.jpl.nasa.gov/galileo/index.html

Project Galileo

http://nssdc.gsfc.nasa.gov/photo_gallery/PhotoGallery-SolarSystem.html/

Solar System Family Portrait

http://www.nap.edu/readingroom/books/planet_sci/contents/chap4c.html

Rings

http://ringside.arc.nasa.gov/

Planetary Rings Node

http://ringside.arc.nasa.gov/www/rpx/rpx.html

Ames

http://www-ssc.igpp.ucla.edu/ssc/tutorial/planet_magnetospheres.html

Planetary Magnetospheres Jupiter

http://nssdc.gsfc.nasa.gov/planetary/factsheet/jupiterfact.html

Jupiter Fact Sheet

http://www.jpl.nasa.gov/galileo/

Galileo probe (NASA Ames)

http://quest.arc.nasa.gov/jupiter.html

NASA’s Jupiter Activities for K-12 Saturn

http://seds.lpl.arizona.edu/nineplanets/nineplanets/saturn.html

Saturn Events

http://nssdc.gsfc.nasa.gov/planetary/factsheet/saturnfact.html

Saturn Fact Sheet

http://www.jpl.nasa.gov/cassini/

Cassini mission