The peer-to-peer masters at Skype are offering free Internet calling and plan to make a killing at it.
Replacement cells from an unlikely source-leg muscle-could help heart attack victims live longer.
PlaceLab researchers are studying how people interact with their homes. Their goal: design useful residential technologies.
Your home and office computers are probably protected by antivirus programs and firewalls. But what about your new cell phone?
Merging multiple biometric techniques creates identification systems that are virtually spoof-proof.
Maritime-security expert Stephen Flynn on how to stop terrorists from targeting the nation's cargo containers.
Microsoft's six-year-old Beijing lab has already paid dividends in speech recognition, wireless multimedia and graphics.