Cunjo Social Plugin is a free, pretty, flexible and mobile ready Social Share Plugin with powerful social analytics.
The Custom Facebook Feed allows you to display a completely customizable Facebook feed of any public Facebook page or group on your website
Popup to Share shows sharing buttons for Facebook, Twitter, and Google plus in a pop-up.
Social Gallery is the Ultimate Social Lightbox Plugin for WordPress. This is the Lite Version.
A plugin to allow your website visitors to invite their Facebook friends. It helps increase social media presence and engagement on the website.
Snap Skout's free social sharebar plugin features popular social icons, including Skout. Skout is the easiest way to find the best deals and info
The Yext plugin lets you sync your menus, product lists, social network posts, and other business content from Yext to your WordPress site.
Send a 'thank you' email to your blog's commenters.
Add Facebook OpenGraph meta into your blog/site.
Login/Share with social networks (mainly in China): QQ, Sina, Baidu, Google, Live, DouBan, RenRen, KaiXin. No API, NO Registration, NO 3rd-Party!
Automatically adds Google +1 buttons to your posts and lets you customize it's display methods
Show author information on post types not depending on WordPress users for galleries, expositions, content offered for/by third parties, etc.
Adds very simple social sharing buttons for Twitter, Facebook and Google+ to the end of your posts.
The best non-obtrusive call-to-action: Scroll Triggered Boxes. Show social media sharing options or sign-up forms in conversion boosting boxes.
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