Adding the Google +1 Button to your Website
If you haven’t investigated this before, you are in for a treat. It only takes 2 steps to integrate the Google +1 button into you website.
Place this tag in your head or just before your close body tag.
<script type=”text/javascript” src=”https://apis.google.com/js/plusone.js”></script>
Place this tag where you want the +1 button to render.
<g:plusone></g:plusone>
It really is that simple! Now you can add this to your website, which will allow your viewers tell the world that your site is the great, and that their friends should check it out!