Digital Life

Robert Siegel and Melissa Block talk about Google's launch of a new type of mobile ad that aims to combat the "fat finger" problem. As the smartphone market grows, mobile ads have become more important to the tech giant, which makes most of its revenue through advertising.

The Federal Trade Commission has released a report taking to task the makers of mobile apps for children. It says apps are not transparent enough about the personal information they collect. It's the latest sign the Obama administration is concerned about children's privacy online.

The agency says that among its most troubling findings is that many apps for kids share such information as geolocations with third parties. Developers need to do more to improve privacy protections and to tell parents what they're doing, the agency reports.

Social media experts Baratunde Thurston, author of the book How to Be Black, and Deanna Zandt, author of Share This: How You Will Change the World with Social Networking, answer questions about how to behave in the digital age. This week's topic: When it comes to holiday cards, should you send them via snail mail or email?

When the New York Post published a freelancer's photograph of a man trapped in the path of an oncoming subway train, many photojournalists, editors and consumers decried the decision as unethical. Others argue that the photo was essential to the story.

Forget touch screens and voice recognition. What if you could control your computer just by looking at it? Gaze-based interaction has been around for 20 years, but it may be poised to become more widely available — and affordable.

The floppy brown hat belonged to Bridget Hughes' late mother, who wore it during cancer treatment. Hughes lost it at the Phoenix airport this week, and asked friends on Facebook to help her find it. Her post has been shared over 100,000 times.