Alongside the Twitter, Facebook and other buttons at the bottom of each post, '+1' was added and turned on by default. Google also has been testing a search by voice 'microphone' on the main Google page almost all day.
You will't see it in Internet Explorer or Firefox. You will see it at the right of the search bar using the Dev-M version of Google's browser Chrome. Click it and it scan your hardware for a mic and tests it. Currently, the test is apparently over. The 'mic' is gone!
To add the +1 button to your blog, you’ll need to enable Share buttons on Blogger:
- Go to Design > Page Elements on your Blogger dashboard
- find the Blog posts area, click on Edit
- select the “Show Share Buttons” option
- If you are already using Share buttons, the +1 button will automatically show up as a new share option
There is another method to add "+1" button to your site:
Just Copy and paste the following code into your site:
<!-- Place this tag where you want the +1 button to render -->
For more information about the +1 button, you can watch this video: