iThemes

Chris Wiegman

<p>Add sharing buttons for Buffer, Facebook, Google +1, LinkedIn, Pinterest, and Twitter</p>
<h4>The Fastest Social Sharing Plugin for WordPress</h4>
<h4>Features</h4>
<ul>
<li>Loads javascripts asynchronously so it won’y slow down your site</li>
<li><a href="http://www.bufferapp.com" rel="nofollow ugc">Buffer Button</a></li>
<li><a href="http://www.facebook.com" rel="nofollow ugc">Facebook Like Button</a></li>
<li><a href="http://plus.google.com" rel="nofollow ugc">Google +1 Button</a></li>
<li><a href="http://www.linkedin.com" rel="nofollow ugc">LinkedIn Button</a></li>
<li><a href="http://www.pinterest.com" rel="nofollow ugc">Pinterest Button</a></li>
<li><a href="http://www.stumbleupon.com" rel="nofollow ugc">StumbleUpon Button</a></li>
<li><a href="http://www.twitter.com" rel="nofollow ugc">Twitter Button</a></li>
<li>Works with the <a href="" rel="nofollow ugc">Bit.ly Shortlinks</a> plugin to provide <a href="" rel="nofollow ugc">Bit.ly</a> shortlinks including custom domains</li>
<li>Can be appended to content or used as a widget</li>
</ul>
<h4>Translations</h4>
<ul>
<li>Slovak by Branco of <a href="http://webhostinggeeks.com/blog/" rel="nofollow ugc">WebHostingGeeks.com</a></li>
<li>Spanish by <a href="http://pabloromero.org" rel="nofollow ugc">Pablo Romero</a></li>
</ul>
<h3>License</h3>
<p>Released under the terms of the GNU General Public License.</p>


Share Center Pro

Adds asynchronous (won't slow your site down) sharing buttons for Google plus, Facebook, Twitter, LinkedIn, Buffer, and Reddit.

Paul Ryan

jojaba

the_elusive

Anil Natha

pkarjala

Eduardo Larequi

<p><em>Authorizer</em> restricts access to a WordPress site to specific users, typically students enrolled in a university course. It maintains a list of approved users that you can edit to determine who has access. It also replaces the default WordPress login/authorization system with one relying on an external server, such as Google, CAS, LDAP, or an OAuth2 provider. Finally, <em>Authorizer</em> lets you limit invalid login attempts to prevent bots from compromising your users’ accounts.</p>
<p>View or contribute to the plugin source on GitHub: <a href="https://github.com/uhm-coe/authorizer" rel="nofollow ugc">https://github.com/uhm-coe/authorizer</a></p>
<p><em>Authorizer</em> requires the following:</p>
<ul>
<li><strong>CAS server</strong> (2.x, 3.x, 4.x, 5.x, 6.x, or 7.x) or <strong>LDAP server</strong> (plugin needs the URL)</li>
<li>PHP extensions: php-ldap, php-curl, php-dom</li>
</ul>
<p><em>Authorizer</em> provides the following options:</p>
<ul>
<li><strong>Authentication</strong>: WordPress accounts; Google accounts; CAS accounts; LDAP accounts; OAuth2 accounts</li>
<li><strong>Login Access</strong>: All authenticated users (all local and all external can log in); Only specific users (all local and approved external users can log in)</li>
<li><strong>View Access</strong>: Everyone (open access); Only logged in users</li>
<li><strong>Limit Login Attempts</strong>: Progressively increase the amount of time required between invalid login attempts.</li>
<li><strong>Shortcode</strong>: Use the <code>[authorizer_login_form]</code> shortcode to embed a wp_login_form() outside of wp-login.php.</li>
</ul>


Authorizer

Integrates nicely with Google hosted domain/s. Couldn't be happier with how it works!

Integrates well with Google Logins

I've experimented this plugin on a multisite and everything works pretty well.

Works great even on a multisite setup

Authorizer limits login attempts, restricts access to specific users, and authenticates against external sources (OAuth2, Google, LDAP, or CAS).

Share Center Pro vs Authorizer