said 1 year ago:
From what I understand, it doesn’t even matter what you post on G+, just as long as you post something, post frequently, obtain +1s on your site (+1s on the site as a whole are ranked heavier), and include links to your site. Google uses the data to help you rank higher in their SERPS. No one uses G+, from what I’ve discovered, except SEO pros!
My business is active on G+, but I don’t spend a lot of time on it. I follow a few rules that I’ve determined are key for SEO purposes, but it is much more of an afterthought than Facebook. With very little time expended, and 100% focus on the tiny things that make an SEO difference, I have seen a change in my rankings.
I’m not using G+ for brand awareness, or conversion, or anything except what it means in Google SERPs. That appears to be all it is worth right now to someone like me.