YouTube calling: Now serving ads on the YouTube mobile site

(Cross-posted with the YouTube Biz Blog)

Mobile phones are rapidly becoming essential tools for surfing the web, connecting with friends, and sharing and watching video online, and we’re seeing these effects at YouTube. The YouTube mobile site is more popular than ever: site traffic grew by over 160% in 2009, and now millions of people all over the world are streaming tens of millions of videos every day on their mobile phones. The mobile space moves fast, so we’ve been working hard to roll out new features and functionality quickly, especially as more and more people adopt…