Mars Links
These links are a great place to find lots of information about Mars.
Good link with basic Mars data
Sky and Telescope magazine article on techniques for observing Mars
A Hubble Space Telescope Site for Mars pictures
A primary site for NASA space programs for Mars research
The site of the Lunar and Planetary Laboratory at the University of Arizona
The site of the Center for Mars Exploration at the NASA/Ames Research Center
The site of the MarsSociety