Google+ is eventually going to be as big, or bigger, than Facebook and Twitter. How do I know? Because Google wants it to be big, and they have the power to make it happen. This year, we’ve already seen several algorithm updates aimed at driving traffic to Google+, and next year we’ll see even more. Bottom line: if you don’t already have a +1 Button on your website, you should put one in immediately.
How is a +1 Button Different from a Like Button?
The +1 Button is designed specifically to improve the browsing experience of Google Plus users. Unlike Facebook Likes or other social media recommendation systems, +1 is integrated with Google’s SERPs. When Google Plus users are searching within Google, they will see their friend’s recommendations directly beside the results. Occasionally, Google+ recommendations will even appear alongside Google ads.
In addition, Google crawls pages more often if they regularly receive +1 recommendations. This keeps the most updated version of your website in Google’s index.
As more Internet users sign up for Plus, +1 is going to become its own SEO metric.
Tips to Maximize your +1’s
Put +1 Buttons Everywhere
Put buttons on the top and bottom of all your content.
In addition, you can set up multiple +1 Buttons on a single page that all recommend different URLs by editing the href attribute. You can use this to set up buttons next to your content’s navigation links.
Use the Callback Function.