To get started, please visit Facebook's Live Producer.
From this page, you can select your destination (Timeline, Page, or Group), control the privacy (Timeline only), and set the video's posting time.
Once you're all set up, you'll see the the Stream Key for your broadcast on the right hand side of the page.
For our Ingest Server URL we'll want to use the following: rtmps://live-api-s.facebook.com:443/rtmp/
Now we'll want to bring this information into our RTMP Destination inside of Lightstream as shown below:
Once your destination is all set up, you're ready to go live!