I received my invite to Google Plus a couple days ago and have not had much time to play with it or consider the implications.
One thing I'm sure I would have wondered was how to store something I found on Google Plus to Evernote. Almost every tool I encounter, I think, "How can I move good content from here to Evernote?"
Brian Caldwell is way ahead of me. He figured out a way to share Google Plus content with Evernote. It is really easy, and uses your unique Evernote email address.
Here is Brian's procedure, displayed in an Evernote shared web note of course.
Meanwhile if you are on Google Plus, here is my Google Plus profile if you want to add me to a circle.