How To Broadcast Live on Facebook
Facebook has expanded your ability to broadcast live. You can now share live video with the world or with a specific group you create and authorize. From the Facebook blog,
1. "To share live video, tap on Update Status and then select the Live Video icon.
2. You can write a quick description and choose the audience that you want to share with before going live.
3. During your broadcast, you'll see the number of live viewers, the names of friends who are tuning in and a real-time stream of comments.
4. When you end your broadcast, it will be saved on your Timeline like any other video, which you can then delete or keep for your friends to watch later."
Click here for the full tutorial from Facebook.