Google has just released the Google +1 button which webmasters can add to their site / blog and enable visitors to give a recommendation to Google and your friends about your site.
Webmasters can get the +1 button code right now. The implementation is very simple and you get started instantly by using this default code where you want the Google +1 button to appear.
Just copy and paste below code in your website or blog.
<!– Place this tag in your head or just before your close body tag –>
<!– Place this tag where you want the +1 button to render –>
The buttons are available in 4 sizes and the url is grabbed from the rel=canonical META tag in your header. You can customize the code at the +1 site. Google +1 has been tested widely on Google search results, which you might have already noticed if you have tried the Google experimental search earlier.
Hope it will helpful to you.