michaelbeacom

Displays the social widgets from Facebook, Twitter, Google+ and Pinterest with your posts. It also adds some meta tags for opengraph and schema.org as recommended by Facebook and Google. The standard method to do this is by filtering the content of the posts, which is controlled by the options in the admin menu. Buttons can also be displayed by the shortcode [sic] with ability to disable individual buttons for that instance of the shortcode. You can also add it to your theme with do_action(‘sic_sharing’); where you want it to render.
Allows some custom text and css insertion as well as most options for the buttons in the admin page. Compatible with html5 (optional).

Sharing is Caring

Displays the social widgets from Facebook, Twitter, Google+ and Pinterest with your posts. Also adds some meta tags for opengraph and schema.org.

twentyZen

webzunder

Chris Kloss

By using the webZunder Open Graph Plugin, you can easily improve the presentation of your content in social networks like Google and Facebook and in search engine results.
With the Plugin you can easily:
<ul>
<li>define a fallback description for pages and posts without a description</li>
<li>define a fallback image for pages and posts without an image</li>
<li>define an individual description and an individual image for your posts and pages </li>
<li>connect your Google+ Business Page with your WordPress pages (Google publisher tag)</li>
<li>connect your Google+ User Profile with your WordPress articles. So your G+ avatar appears aside the search results (Google author tag)</li>
<li>connect your Facebook Business Page with your WordPress site (Facebook publisher tag)</li>
<li>create a summary twitter card for your posts</li>
</ul>
To avoid problems, we recommend to desist from parallel using other SEO-plugin which supports Open Graph meta tags, Google Authorship or twitter cards.
<h4>HINT:</h4>
<blockquote>
You want to better monitor and control your social media activities? Then try it out the plugin in combination with webZunder. Simply try webZunder risk-free for 30 days and push on your own online marketing.
Find further information on <a href="http://www.webzunder.com/" rel="nofollow ugc">www.webzunder.com</a>
</blockquote>

webZunder Open Graph Plugin

Improve the distribution of your website content easily by adding Open Graph information for Google and Facebook

Sharing is Caring vs webZunder Open Graph Plugin