WPAPP.NINJA

Create shortcode to add social share link to your posts, sidebars, widgets, …
<ul>
<li>[socialninja network=”twitter”]</li>
<li>[socialninja network=”facebook”]</li>
<li>[socialninja network=”google”]</li>
<li>[socialninja network=”linkedin”]</li>
<li>[socialninja network=”pinterest”]</li>
<li>[socialninja network=”reddit”]</li>
<li>[socialninja network=”digg”]</li>
</ul>
Inject automatically, to all your posts, Open Graph meta tags and Twitter Cards:
<ul>
<li>og:type</li>
<li>og:title</li>
<li>og:description</li>
<li>og:url</li>
<li>og:site_name</li>
<li>og:image</li>
<li>twitter:card</li>
<li>twitter:domain</li>
<li>twitter:image:src</li>
</ul>

SOCIAL.NINJA

Optimize your SEO with Open Graph meta tags, Twitter Cards and social share links.

akurganow

Plugin insert open graph metadata on your WordPress site. The plugin still in beta, so please send bug reports to me by <a href="mailto:akurganow@polzo.ru?subject=ogMeta" rel="nofollow ugc">e-mail</a>. If you want to help with the translation, write to the same e-mail, but with the notation “Translation [language]”
<ul>
<li>More information: <a href="http://polzo.ru/ogmeta" rel="nofollow ugc">Polzo.ru</a></li>
<li>See: <a href="http://ogp.me/" rel="nofollow ugc">OPG.me</a></li>
</ul>

Polzo ogMeta

Plugin insert open graph metadata on your WordPress site.

SOCIAL.NINJA vs Polzo ogMeta