We'll create fresh WordPress site with Linkedin_Oauth installed. You have 20 minutes to test the plugin after that site we'll be deleted.
Linkedin_Oauth allows users to login or optional register into your wordpress site using their linkedin account, it will set a login button on your login page and uses a shortcode to put the button wherever you want it to show.
Major features in Linkedin_Oauth include:
PS: You’ll need to set an id and secret pass on Linkedin developers API, just go to this web site and create an application https://www.linkedin.com/secure/developer.