Neptune
Links
Welcome to the Planets: Neptune
http://pds.jpl.nasa.gov/planets/welcome/neptune.htm
Planetary profile and vital statistics.
Views of the Solar System: Neptune
http://www.solarviews.com/eng/neptune.htm
Views, animations, general information and data of the planet.
Mathematical Discovery of Neptune
http://www-groups.dcs.st-and.ac.uk/~history/HistTopics/Neptune_and_Pluto.html
Another interesting history on how planets can be discovered mathematically.
Astronomy 161: Neptune
http://csep10.phys.utk.edu/astr161/lect/neptune/neptune.html
General features and some pictures.
Neptune
http://www.nineplanets.org/neptune.html
Pictures, statistics, and detailed information on planet Neptune.
NSSDC Photo Gallery: Neptune
http://nssdc.gsfc.nasa.gov/photo_gallery/photogallery-neptune.html
Select images of the planet, with brief captions.
Neptune114
Its atmosphere, rings, moons, appearance, and links to related sites.
Neptune
http://www.harmsy.freeuk.com/neptune.html
Concise introduction to this cold and distant planet, with numerous resources.
Windows to the Universe: Neptune
http://www.windows.ucar.edu/tour/link=/neptune/neptune.html
Overview of several aspects of the planet. Versions available for beginner, intermediate and advanced level users.