Forbes contributors publish independent expert analyses and insights. I cover the collision of advertising and the Internet. The app, which Sjogreen and Graham started working on in March, allows you ...

A good photo tells a story, but sometimes a little extra explanation can't hurt. A new app called Shadow Puppet wants to enhance the way you share pictures by allowing you to add voice-over narration.

How many times has this happened: you’re looking at a photo your friend sent and you’re wondering, what it’s supposed to mean? Was there something funny you should be laughing at? Was it an “aaawww, ...