If you haven't checked out SmartPlanet, the site covers topics such as NASA, the smart grid, genetics, high-speed rail, and corporate sustainability. Recent stories that might interest Geekend readers include: How robots could run and walk like animals and humans, NASA tracks hurricane season as volunteers map the oil spill, and Marvin Minsky and Tod Machover talk music and the mind.Head over to SmartPlanet and enter for your chance to win an Amazon Kindle. If you're already a registered TechRepublic member, no problem –- you're eligible, too. Just verify your information, and you're good to go. (Must be legal resident of one of the 50 United States or D.C., 18 years of age or older or age of majority in the state where you reside at date of entry into sweepstakes. Void in Puerto Rico, all U.S. Territories and possessions and where prohibited by law. Sweepstakes ends Friday, July 30, 2010 at 8:59:59PM PDT. See the Official Rules for more details.)
Note: No, a color Amazon Kindle doesn't exist. The above is just for illustrative purposes.
Mary Weilage is a Feature Editor for CBS Interactive. She has worked for TechRepublic since 1999.