When Google+ first launched business pages, you weren’t allowed to follow people unless they were following you. You could follow other business pages, but not people. Somewhere along the way, this has changed, and you can now circle or follow anyone and anything on Google+.
When first starting off, this is the best way to build an audience on Google+. It’s not all that different from Twitter in this regard. You follow others, and there’s a good chance they’ll follow back.
The best part is, thanks to Search+, if somebody following you performs a search on Google that is related to your site, there is a good chance Google will list your site on the first page of the search results, all because that person is following your business page on Google+.
Not only that, Google might also list your site high in the SERPs for people who are friends of those following your page, meaning they’re not following your page directly. That’s powerful!
In order for this to work right however, you must add the Google+ “publisher” tag to your site, connecting it with your Google+ page.
I also highly recommend publishing unique content on your Google+ page and make sure you’re posting to the public! Public posts show up in the Google search results and it would seem Google likes to rank Google+ posts high in the SERPs.
