Google unveiled Hangouts on Air last year, but it was limited to just a handful of broadcasters, which allowed them to go live with friends or fans, for the entire world to see. These users have loved it, and have made the once small community grow into its own entity.

Today, Google have launched Hangouts on Air to Google+ users worldwide. This means that anyone can jump on, and go live in front of a global audience. Here's what you're abel to do:

• Broadcast publicly. By checking "Enable Hangouts On Air," you can broadcast your live hangout-from the Google+ stream, your YouTube channel or your website-to the entire world.
• See how many viewers you've got. During your broadcast, you can look inside the hangout to see how many people are watching live.
• Record and re-share. Once you're off the air, we'll upload a public recording to your YouTube channel, and to your original Google+ post. This way it's easy to share and discuss your broadcast after it's over.

Launching millions of live stations can't be done overnight, so Google are rolling out Hangouts on Air over the coming weeks.