Planet Mars - Promotes the idea that private enterprise and schools will land people on Mars at smaller cost and greater purpose than government.

Mission Mars - A detailed plan for a Martian colony developed by students as an entry in the ThinkQuest contest for educational Web sites.

The Mars Millennium Project - An official White House Millennium Council youth project challenging students across the nation to design a community for the planet Mars.

New Mars: A Journal of the Martian Frontier - Published by the Mars Society; its archives contain significant articles on the rationale of colonization.

West to Mars - An inspirational site devoted to pioneering on Mars.

Mars First - A private individual's site intended to help stimulate public interest in both manned and robotic missions to mars, with the aim of human settlement as soon as possible.

The Case for Mars - International Conference for the Exploration and Colonization of Mars.

The Economic Viability of Mars Colonization - A paper by Robert Zubrin.

Mars Colonization - Information from the Astrobiology Web about how and why Mars might be colonized.

The Possibilities of Colonizing Mars to Sustain Life - A presentation based on the hypothesis that establishing a colony on Mars would require a great deal of technological advancement and an increase in knowledge of how to utilize current Martian and Earth resources.

Mars Society - Dayton Branch - Website of the Dayton Branch of the Ohio Chapter of the Mars Society, a nonprofit international organization promoting human exploration and colonization of Mars.

Human Habitats at Mars: Defending Against Contamination - Detailed news report on how proponents of human settlements on Mars defend themselves against charges of contaminating what's possibly already thriving there.

Mars Colony - sponsored by the Martian Federation - A venture to establish a privately funded colony on Mars.