Here is a tutorial on how to but the Facebook like button on your Yahoo! store item pages. It’s not to hard but it sure isn’t for the beginners! You also must know how to edit RTML for this tutorial. This is only for the Yahoo! Store Editor V3. The first thing that we are going to want to do is create a variable for the source to go into. Login into your store manager >> Store Editor >> Variables Once we are in the variables page we are going to create a new one! Click the button up top…