Following the introduction of branded Google+ pages for businesses and brands, Google has made a point of letting us know the ins and outs of the service. We learned earlier today that promotions will be strictly forbidden from branded pages, i.e. no direct advertising of contests, offers, sweepstakes, etc. In addition to launching a new Pages guide that acts as a resource for those who want to learn more, they also made a post on the official Google+ page today outlining some of the intricacies of the service.
You might have known a couple of these, but others probably not. For instance, Google+ Pages cant mention or follow a user unless you’ve connected with them first, and a page will automatically unfollow a user if the user unfollows the page. Below is the full list from Google, or head over to the new Google+ pages resource center to learn more about how to share, promote, and measure the traffic of your brand page.