Looks like they could soon be webinars and events or how to sessions on hangouts! Maybe even a whole online distance learning course, especially since higher education institutions like University of Minnesota’s are using Google+ and Gmail as their main email and social networking platforms, who knows?!? The possibilities are endless!
Here's a Hangout 101 Tutorial (The Google+ Way)

Don't miss out on hangouts. It's the most interesting feature on Google+

I hope these screens that I created helps you discover hangouts.

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How to hangout (7 photos)
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