You can now have your business page on Google Plus.
Check our BuzzBooster Marketing page to see an example and don’t forget to add us to your circles.
Since content from your Google Plus page can be indexed by Google you need to have one.
Since you can have groups/circles based on topics of interest you should have one.
Since you can use the feature Hangout to have meeting with prospects, clients and showcase products, you should be using Google +
Don’t forget to populate your page with good content as you should do in any social media environment.
Don’t forget to add a Google + button on your site and to promote in other social environments.
Google understands business and I believe many more features will show up in the near future that will allow us to market our businesses better.