This plugin will create a contact page that will sync with the users Facebook Page.
Sends status updates to Ping.fm or Twitter everytime you publish a post, using own domain or others for shortened permalinks.
Adds Facebook OpenGraph Meta Tags to head for a better social sharing experience.
Social Author Bio automatically adds an author bio box along with Gravatar and social icons on posts. Now with built in Google Author!
Add a Notification Bar to your WordPress blog with the official NotiBar plugin.
Ultra Lite Weight Plug & Play WordPress Plugin for Facebook Comments - Email Notification.
Adds Open Graph metadata to your posts and pages so that they look great when
shared on sites like Facebook and Google+.
Headliner will help you easily promote your posts to new people
on Facebook and Twitter. Reach new audiences for free.
This plugin adds a og:image tag to your head with the input/upload of the image in the settings.
'Changing the way you share', giving you an experience you have never had before...
Today In History provides a simple widget that displays notable events that have occurred previously on this day in history.
Let your visitors like, comment and share on facebook from a neat slide-in panel.
WP Readable reinventing the mobile blog experience
Short code that allows you to easily add a slider displaying the last 20 stories/liked stories of a Storify user in a horizontal or vertical slider.
RSS link for this tag.