Google+ is built around the idea of circles and web marketers can use this to their advantage. A circle is a group of related profiles or brand pages. You can create circles around any topics or ideas you want and then put profiles into one or more of those circles. You can make posts visible to a single circle, all your circles, or the public.
If you’re running a bicycle shop, you might create a circle of other folks interesting in cycling. Then, when you post something about cycling or your shop, you can send it to that circle, and they’ll all receive the update. It’s a great way to contact colleagues and customers in a conversational way.
To add someone to a circle, follow these steps:
Find someone you want to follow.
Go to your home Google+ page. Search for a favorite topic, or use the Suggestions list on the right side of your screen.
Hover over Add to Circles under the person or page name.
Choose a circle:
Add to an existing circle: Select the circle to which you want to add this profile or page. You can add one person to multiple circles. These circles are yours alone. Unless you share them, no one else can see who’s in them.
To create a new circle, click the Create New circle link. Type the circle name and click the Create button. Google+ creates the new circle and adds the profile or page to it.
