Just the other day I re-shared a post from Tim O’Reilly. The post itself has (to date) had 283 comments and been +1’d 1482 times and been re-shared 728 times. If, like me, the person re-sharing the post has made a comment which indicates their slant on the original post that means the ecosystem of engagement and the range of views expressed is immense – I’m not skilled enough to garner those posts and analyse them but I do know they’re all recorded in one place, so you could search them out.
What I do know is that this level of engagement and the depth of comment that can be engendered on Google+ would not have happened on twitter – where the best one might have hoped to have achieved would have been a reference to a blog post you’d written with the comments (if any) stored on a myriad of blogs all over the place; and would not have happened at all on Facebook – where I’ve never observed any serious commentary occurring.
There’s really quality engagement and conversation taking place on Google+. I commend it to you!