First Solar's thin-film technology is now challenging silicon panels at large-scale solar-power facilities.
Microsoft tries to win customers in South Africa with a subscription service for Office.
The automaker could sell cars that allow short trips fueled by electricity alone before GM does.
Overall, plug-in cars are a plus for the environment, despite the fact that they would increase the demand for electricity.
Mobile manufacturer's goal is to increase Internet services.
How will Revver and other revenue-sharing video websites address the challenges ahead?
Startup FastSoft could speed up the transfer of video and voice files over the Internet.
Kevin Rose, founder of Digg.com, talks about why it's good that the site is out of control.
The head of Google Research talks about his group's projects.