Sure you have!
If you have not, here is explanation of what it is.
+1 is your way to show other Internet users that something interesting is on the page. When you "+1" the page, it will be marked on Google search results so people can understand that and find interesting content.
Do you find content of this site interesting? Then "+1" it! You can find "+1" button under each post, next to your usual "Like" of "Tweet" buttons.
Just do it! Just +1 it!
|Do you want to +1 this post? Here is the button!|