NPR : Mars Rover Marks Second Anniversary of Landing - On the two-year anniversary of mars rover Spirit's landing, both rovers (Spirit and Opportunity) are going strong. The robotic geologists have provided invaluable data about whether Mars could once harbor life. [7:33 streaming audio broadcast] - http://www.npr.org/templates/story/story.php?storyId=5081522
Missions to Mars - Cornell University's developments of the new generation rover for the 2003 Mars Exploration Rovers. - http://athena.cornell.edu/
Mars Exploration Rover - NASA's latest news from Spirit and Opportunity. The primary goal of the robots is to search for and characterize a wide range of rocks and soils that hold clues to past water activity on Mars. - http://marsrovers.jpl.nasa.gov/
Space.com - Mars Rover Special Report - Collection of articles about Spirit and Opportunity published by space.com. - http://www.space.com/marsrover/
Mars Rover Blog - Illustrated news journal of Spirit and Opportunity progress. - http://www.markcarey.com/mars/
Mars Exploration Rovers - Clearinghouse of links for the Mars Exploration Rover Mission (Spirit and Opportunity). - http://axonchisel.net/etc/space/mars-exp-rover-highlights.html
Mars Exploration Rover Mission - Latest news, press releases, and photos from Spirit and Opportunity. - http://marsrovers.jpl.nasa.gov/home/index.html