I was asked how to do this very simple post showing you guys how to add this widget to your blog.
I use LinkWithin.
For some reason the site isn’t working properly so when you fill out the form on the first page with your info but choose other instead of your platform.
Next you’ll come to a page like this but instead of the box being empty it will contain your code which you can then copy and paste into your site as an HTML widget.
Hope this helps!