What's the quickest way to make anything technological go kablammo? Easy: Get Justin Bieber to like it. His fans follow his every movie with such quasi-religious devotion that when the teen singer tweeted his first photo on the iPhone-based image-sharing program Instagram, thousands of teen girls followed suit. Instantly, Instagram saw a surge in activity. Most remarkable of all? Bieber apparently wasn't paid to endorse the service. He was just stuck in traffic, fiddlin' with his iPhone.