Currently LinkedIn Share button is available in 3 different flavors: Vertical count, Horizontal count and No count. You can easily add it to any website by choosing one of them with a few line of code from Publishers page.
LinkedIn launched multiple new options for publisher in April that makes it simpler. These options allow users to attach a links in their status update messages with the ability of edit and delete posts as well as re-share.
Many publishers already using Digg, Google Buzz, Twitter, and StumbleUpon sharing buttons and Obviously the competition among them is very strong. So, the question is: Do users really want LinkedIn share button? Let us know what you think.