Are you sending your child back to school with a mobile phone, laptop, or tablet PC? Director of Microsoft Trustworthy Computing Communications, Jacqueline Beauchere, offers these tips: Set clear use limits for kids on their mobile phones. Lock kids' phones with a personal identification...

Mobile services (often called “geolocation” services) now have the ability to track and share our location with friends. Location positioning services can help you find local movie times, weather, or directions to the nearest coffee shop. They can also help you find out where your friends...