Automattic has released an Open Social based open source application for LinkedIn, largest social network for professionals.
Once this app is added and setup, your LinkedIn network will be alerted when you post something to your WordPress.com or self hosted WordPress.org blogs. To add the WordPress App to your LinkedIn account, visit the LinkedIn Application Directory. Select the WordPress App, enter your blog’s URL, and choose to display either all of your blog posts or just those tagged with “LinkedIn.” Save, and you’re all set.