On Google+, you have the ability to manipulate your circles to control the groups of people you want to receive information and content from, but there’s no guarantee those users will circle you to receive your updates.
This is where Google+ Communities come in, Google’s version of a group or forum, built to bring people together around particular topics. Launched in December, the types of Communities available to the Google+ audience seem endless — ranging from science, animals, development and more.
Communities are places where users can share specific questions, comments or content relating to a particular topic with other users who are just as interested in the conversation. For example, if you’re a member of a cooking community, it’s likely each post will contain something related to food. And if there is a user who is posting content unrelated to the chosen topic, a moderator could step in and police that person.