WordPress Social Media Feather is a lightweight free social media WordPress plugin that allows you to quickly and painlessly add social sharing and following features to all your posts, pages and custom post types.
The WordPress social media sharing offered by the plugin includes all major social sharing providers like Facebook, Twitter, Google+, reddit, Pinterest, tumblr, Linkedin and even e-mail.
It will show social buttons that your users can click to share to facebook or tweet your posts and pages on your site or submit it to reddit and google plus and all other social sharing networks.
The WordPress social media following offered by the plugin includes all major social network providers and tools like Facebook, Twitter, Google+, Pinterest, Linkedin, YouTube, tumblr, instagram, flickr, foursquare, vimeo or RSS.
The plugin also offers widgets for sharing and following buttons that you can place in any widgetized area in your site. Social sharing and following widgets also expose some settings to tweak appearance.
You can also check out the free WordPress plugins registry page for the WordPress Social Media Feather plugin here.