A Planet Pursuit
   Pictures, facts and general information on the nine planets.
   http://homepage.eircom.net/~aidanbarry/planetpursuit/

About Atmosphere
   Summary information regarding the atmospheres of each planet in our solar system.
   http://www.mardiros.net/atmosphere/

Aniket World
   Personal page reporting basic features of the planets and some links.
   http://www.angelfire.com/space/aniketworld/

Astronomy 161: The Solar System
   Overview with historical background and basic astronomy concepts, details about planets, satellites, asteroids, comets and meteors.
   http://csep10.phys.utk.edu/astr161/lect/

Astronomy Today - Solar System
   Fairly detailed information about our sun and its planets.
   http://www.astronomytoday.com/astronomy/solarsystem.html

BBCi Space: Solar System
   3D tour including videos with audio and text information on the Sun and the bodies orbiting around it. (Shockwave and Realplayer required)
   http://www.bbc.co.uk/science/space/solarsystem/index.shtml

DiscoverThePlanets.Com
   Various images, brief information, moons, summaries of past and planned missions.
   http://www.discovertheplanets.com

Endless Boundaries
   Information on the Sun, planets and moons.
   http://www.fortunecity.com/roswell/milkyway/1000

Exploring the Planets
   Sponsored by the National Air and Space Museum, contains many interesting facts about the planets, pictures, comparisons and a section dedicated to spacecraft.
   http://www.nasm.si.edu/ceps/etp/

Free Software for Planetary Science
   Image processing browers for Mariner 6, 7, 9, 10, Venera 15/16, and Viking Orbiter.
   http://members.tripod.com/petermasek/marinerall.html

Gazetteer of Planetary Nomenclature
   Protocols for naming planetary features, by the Working Group for Planetary System Nomenclature of the International Astronomical Union.
   http://planetarynames.wr.usgs.gov/

Northeast Regional Planetary Data Center
   Includes list of available image collections and how to obtain the data at the facility (no images are online).
   http://www.planetary.brown.edu/planetary/data_center/

Orrery: Solar System Simulator
   A Java applet that simulates gravitating masses. Features a working model with motions and sizes of 70 planets and moons to scale.
   http://www.cuug.ab.ca/~kmcclary/

Orrery: The Solar System in Action
   A concise tour containing numerous educational resources, and support for Spacetech's Orrery application.
   http://www.harmsy.freeuk.com/orrery.html

Our Solar System
   Basic information and low resolution pictures of the bodies of our planetary system.
   http://www.afamilyquilt.com/brezeeger/space/solarsys/

Our Solar System - Planets Alive
   Offers overview information. Includes list of planetary space missions.
   http://www.dunnbypaul.net/solarsystem/Main_A.html

Planetary Cartography and Graphics by Ralph Aeschliman
   Planetary maps and graphics of Mars, the Moon and Venus.
   http://ralphaeschliman.com

Planetary Fact Sheet
   Table of essential measurements and facts regarding the nine planets with links to highly detailed summaries.
   http://nssdc.gsfc.nasa.gov/planetary/factsheet/index.html

Planetary Materials Curation
   Features Moon rocks, Mars meteorites, and space exposed materials at NASA's curation office.
   http://www-curator.jsc.nasa.gov/curator/curator.htm

Planetary Science Institute
   Research and educational institute with projects to study planets, asteroids, and comets.
   http://www.psi.edu/

Rotation of Sun and Planets
   The rotation period of a large body circled by one or more satellites can be calculated theoretically.
   http://www.geocities.com/saeles/planetsrotation.htm

SkyScopes
   Information about planetary astronomy and space exploration and habitat. Online chat, message boards, and related links. Sells replicas and toys.
   http://www.skyscopes.com/

Smiley's Planet
   Explore the solar system's planets. Includes pictures, descriptions, statistical information and a special section on the latest voyage to Mars.
   http://www.d.smiley1.btinternet.co.uk/

Solar System - Celestial Mechanics
   A theory about the rotation of sun and planets, planetary rings, origin of solar system, solar cycles and climate variations.
   http://www.heeke.com/franz

Solar System Discoveries by JJ Kavelaars
   References to minor planets and moons of planets that were discovered by JJ Kavelaars.
   http://pinks.physics.mcmaster.ca

Solar System Dynamics
   Provides detailed information related to known bodies in orbit around the Sun. Ephemerides, physical parameters, Earth close-approaches, observer tools.
   http://ssd.jpl.nasa.gov/

Solar System Ephemeris
   Providing ephemeris of a variety of Sun orbiting bodies.
   http://www.arnaudxx.net/index.php

Solar System Exploration Home Page
   The Solar System Exploration Home Page is part of NASA's Office of Space Science and describes NASA's program to explore the solar system.
   http://solarsystem.nasa.gov/index.cfm

Solar System Simulator
   Online software that generates views of the bodies of our planetary system at any date from any artificial or natural point of observation.
   http://space.jpl.nasa.gov/

Stardate Online: Guide to the Solar System
   Contains an outline of the formation and evolution of planets, comets, asteroids, and of their features and exploration.
   http://stardate.org/resources/ssguide/

The Planetary Society: Solar System Guide
   Current and concise information about all planets, major satellites, comets and asteroids.
   http://www.planetary.org/learn/solarsystem/index.html

The Solar Space Station
   Facts, descriptions and pictures, with sections about the Sun, the planets and meteors and asteroids.
   http://www.solarspace.co.uk/

The Solar System
   Detailed guide to the sun and planetary system, asteroids, comets, meteor hits on Earth and the other planets.
   http://www.eoascientific.com/prototype/newcampus/space/space.html

The Solar System in Pictures
   Quizzes and images about all the bodies of our planetary system.
   http://www.the-solar-system.net/

USGS Astrogeology Research Program
   Features planetary imagery, research, GIS, mapping, and image processing software. The site provides information about the group and about the Solar System.
   http://astrogeology.usgs.gov/

Uranus, Neptune, and Pluto
   Journey to the outer reaches of the solar system and discover what scientists have learned about Uranus, Neptune, and Pluto.
   http://www2.worldbook.com/features/outerplanets/html/index.html

Virtual Solar System
   Images, facts and quizzes about the nine planets. Also includes a scale model.
   http://www.solarsystem.org.uk/

Welcome to the Planets
   Select images from NASA's planetary exploration program.
   http://pds.jpl.nasa.gov/planets/

Windows to the Universe
   Aimed at portraying Earth and Space Sciences in a fun way. Includes information about space weather, global space physics and a real time movie of current solar activity.
   http://www.windows.ucar.edu/