I don’t log in to Google+ as much as I did when it first launched but I still find it a nice option when the stream of kid and vacation pictures on Facebook gets to be too much (and I’m as guilty of those crimes as anyone.)
My Google circles are mostly made up of people I don’t know but have something in common with (Reddit, MetaFilter, Librarians, Random People From Saskatchewan) and that’s the gist of this presentation – Google is a fundamentally different type of network than Facebook or Twitter. Where Facebook is (mostly) for connecting with your friends and acquaintances and other people you know, and Twitter is (mostly) for following people you don’t know, Google+ is for discovering people you share an interest with, whatever that may be (and a natural extension of their circle metaphor.)
Interesting stuff indeed!