Hangouts aren't just for your closest pals and technorati folk like Robert Scoble anymore. Hangouts On Air lets you to broadcast your hangout. That means anyone can watch you and your friends. Make sure you watch that camera light! This feature is going to roll out slowly with a limited number of broadcasters, beginning with will.i.am of Black Eyed Peas Fame. The celebrity will be hosting the first On Air Hangout on Wednesday evening.