Here are two short videos chock full of info about Google+ Hangouts and Hangouts On Air. There are differences. Ol' Myrt prefers the Hangouts On Air, because they are auto-archived on my YouTube Channel.
This first video explains what the screen looks like for JOINers, and describes the best way to be a VIEWer and get your questions answered during the LIVE Hangout On Air.
SIGN LANGUAGE - DURING LIVE HANGOUTS
Anna Caveldar explains "Using the Sign Language Interpreter app, deaf or hard of hearing users who prefer sign language can invite interpreters to speak and sign for them during a Hangout. They'll always see their interpreter at the top right of the window, and they'll become the focus of the Hangout whenever their interpreter speaks for them. You can install the app using this link: https://plus.google.com/hangouts/_?gid=532733437531."
CLOSED CAPTIONING - ARCHIVED HANGOUTS ON AIR
This second video shows how to turn on "Closed Captioning" when viewing a recorded Hangout On Air. I am simply amazed by technology.
Happy family tree climbing!
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Second Life: Clarise Beaumont