This will allow you to make the image or link of your choosing share a url of your choosing with a title and description of your choosing to a users Timeline on Facebook. This is cool because with the normal FB share you don’t get to choose the description, image to share, and url. I found the answer on this guy’s blog after searching for all sorts of things like: facebook share button custom image, full control over facebook share button, facebook share this link tweaks, share this link embed, share any page to facebook with flexible share button, cool facebook share button, and cool facebook share jquery.