Neil Simon

<p><strong>Enter an email address and available contact information is displayed:</strong></p>
<ul>
<li>Photo</li>
<li>Name</li>
<li>Demographic information</li>
<li>Personal interests</li>
<li>Clickable social links (LinkedIn, Twitter, Facebook, …)</li>
<li>Recent <a href="http://twitter.com/" rel="nofollow ugc">Twitter</a> updates</li>
<li>Recent <a href="http://plancast.com/" rel="nofollow ugc">Plancast</a> plans</li>
<li><em>Optionally</em>, emails the displayed contact information to any valid email address</li>
</ul>
<p>Contact information provided by <a href="http://fullcontact.com" rel="nofollow ugc">FullContact</a>.</p>
<p>Email services provided by <a href="http://sendgrid.com/" rel="nofollow ugc">SendGrid</a>.</p>


RainmakerMoxie

RainmakerMoxie (BETA-limited support) is an interactive sidebar widget. Enter an email address and it displays a photo, name, social links and more.

3pillarlabs

<p>SocialAuth-WordPress a WordPress 3.0+ plugin derived from popular PHP based HybridAuth library. Inspired from other WordPress social login plugins, this plugin seamlessly integrates into any WordPress 3.0+ application and enables social login integration through different service providers. All you have to do is to configure the plugin from settings page before you can start using it. SocialAuth-WordPress hides all the intricacies of generating signatures and token, doing security handshakes and provides an out of the box a simple solution to interact with providers.</p>
<p><a href="http://labs.3pillarglobal.com/socialauth-wp-demo/wp-login.php" rel="nofollow ugc">Click Here</a> to see Socialauth-WordPress in action.</p>
<p>Please check out <a href="https://wordpress.org/extend/plugins/socialauth-wp/other_notes/" rel="ugc">Developer Notes</a> for more information on this plugin.</p>
<p>You can also check <a href="http://labs.3pillarglobal.com/" rel="nofollow ugc">labs.3pillarglobal.com</a> to get similar libraries in other technologies under SocialAuth umbrella.</p>
<p>What’s new in latest release?</p>
<ul>
<li>Introduced plugin short code [SocialAuth-WP-Short-Code]. Use in pages/posts.</li>
<li>If new registrations are disabled, new users can not login to your WordPress site.</li>
<li>New option in plugin settings to hide ‘My Contacts’ option from left navigation bar of dashboard.</li>
<li>Post login redirect capability to get user back to the page from where you initiated login process.</li>
</ul>
<h3>Live Demo</h3>
<p>See the <a href="http://labs.3pillarglobal.com/socialauth-wp-demo/wp-login.php" rel="nofollow ugc">live demo</a> now!</p>
<h3>Features</h3>
<ul>
<li>Authenticate users with Facebook, Yahoo, Google, MSN, Twitter, MySpace and LinkedIn etc (Provider support depends on provider supported by HybridAuth library).</li>
<li>Access profile of logged in user (Email, First name, Last name, Profile picture)</li>
<li>See contacts/friends of logged in user. Friend information contains information such as email, profile URL and name.</li>
<li>More control over logout from application as well as authenticating provider.</li>
<li>Administrator can control the default role for users who register via SocialAuth-WordPress.</li>
<li>Administrator can set display order of providers for login page.</li>
<li>Added new option in settings page to set how authentication will open (There are 2 options – In page itself and In a pop-up window)</li>
</ul>
<h3>Benefits</h3>
<ul>
<li>Your blog users – Instead of creating new account on website, users can use their existing accounts from popular providers like Facebook etc. making it easier for them to access/contribute content.</li>
<li>Blog administrators/owners – With no registration requirement, users can quickly login to the site and use its features. Further, users trust big providers (like Facebook etc.) making them comfortable in login process. This fast and trusted login process definitely attracts potential users and increase site popularity. Site administrator can set the permission for users who will login with external login provider.</li>
</ul>
<h3>Plugin Settings</h3>
<ul>
<li>SocialAuth-WordPress provides a nice settings interface to make it easy to use and configurable for your users and administrators out of the box.</li>
<li>You can configure the default role which will be given to users which will connect to your app with help of this plugin.</li>
<li>You can also set up a default landing page for the users using logon features of this plugin.</li>
<li>Setting interface allows you to enable disable individual provider.</li>
<li>When registering with Logon provider to get app_key and app_secret, some case you require you to supply a redirect_uri; you can get that from settings page.</li>
<li>Administrator can also control how logon prompts appear to users. It can be either on same window or a pop up window.</li>
<li>Administrator can control showing on login provider icons on comment and registration page, this is will help users to directly logon from there without going to login page.</li>
<li>Administrator can enable optional e-mail verification for new users to force email verification when a new user first time comes to your site. This will only applied to users coming through providers which do not share user email in open-auth/social-auth</li>
<li>Administrator can control whether or not to show complete session end message on logout or not.</li>
</ul>
<h3>Credits</h3>
<ul>
<li>HybridAuth Library – A open source social sign on php library residing in core of plugin and providing interface to connect to various login providers.</li>
<li>A lot many thanks to Viruthagiri Thirumavalavan (one of most active plugin users) for using, raising bugs and suggesting enhancements to make this plugin better.</li>
</ul>


Socialauth-WordPress

SocialAuth-WordPress a WordPress 3.0+ plugin which enables social login integration through different providers (eg. Facebook, Twitter).

RainmakerMoxie vs Socialauth-WordPress