3hmedia

WP LikeJS includes a nice jQuery driven Like Box Popup Box onto your Website or Blog, which pops up when the user is scrolling your page down. You can choose how much px have to be scrolled before the LikeJS Box is displayed. 
Also you can change the headline of the Box for your communication with your visitors like “Follow us on Facebook” or whatever you want. 
The script is very smart and loads fast and is compatible with all mayor browsers.
Demo: http://www.like-js.de

WP LikeJS

WP LikeJS includes an eyecatching Facebook Like Box on your website. You'll get more Fans with LikeJS than with an usual Like Button and it locks …

Cameron Jones

Mongoose Marketplace

Seamlessly add a Facebook Page to your WordPress website with the Mongoose Page Plugin! Trusted by more than 30,000 WordPress websites worldwide, the Mongoose Page Plugin is the simplest way to add a Facebook page to your website.
You can add your Facebook page to any widget area with the custom Mongoose Page Plugin widget, with live preview available in the Customizer.
The plugin can be used to add your Facebook page to any post, page or text widget by using the <code>[facebook-page-plugin]</code> shortcode to display the plugin wherever you like, as often as you like.
Other features include:
<ul>
<li>
A shortcode generator on the admin dashboard for easy generating of the shortcode
</li>
<li>
Uses your site language by default, but you can display your Facebook page in all 111 languages that Facebook supports, including English, Spanish, Arabic, German, French, Russian and many more
</li>
</ul>
With more than 30,000 installs and over 50 5-star rating, the Mongoose Page Plugin is one of the most popular social media plugins for WordPress.
<h3>Plugin Settings</h3>
The Mongoose Page Plugin uses a shortcode to insert the page feed. You set your settings within the shortcode. 
 [facebook-page-plugin setting=”value”] 
Available settings:
<pre><code>href (URL path that comes after facebook.com/)

width (number, in pixels, between 180 and 500, default 340)

height (number, in pixels, minimum 70, default 500)

cover (true/false, show page cover photo, default true)

facepile (true/false, show facepile, default true)

tabs (any combination of [posts, messages, events], default timeline)

cta (true/false, hide custom call to action if applicable, default false)

small (true/false, display small header (must be true for height to be lower than 130px), default false)

adapt (true/false, force plugin to be responsive, default true)

language (languageCode_countryCode eg: en_US, language of the plugin, default site language)

method (SDK or iframe embed method, default SDK)
</code></pre>
<ul>
<li>
Deprecated Settings *
posts (true/false) – posts has been replaced by tabs as of 1.4.0. There is a fallback in place to convert it to tabs
</li>
</ul>
Example: <code>[facebook-page-plugin href="facebook" width="300" height="500" cover="true" facepile="true" tabs="timeline" adapt="true"]</code> 
This will display a Facebook page feed that loads in the page <code>facebook.com/facebook</code> that is 300px wide but adapts to it’s container, 500px high, displaying the page’s cover photo, facepile and recent posts in the same language as the site. See the screenshots tab for a demonstration of how it will appear
<h3>Filter Reference</h3>
<pre><code>facebook_page_plugin_dashboard_widget_capability
</code></pre>
Changes who can see the shortcode generator on the dashboard. Default: <code>edit_posts</code>
<pre><code>facebook_page_plugin_app_id
</code></pre>
Changes the Facebook App ID.

Mongoose Page Plugin

The most popular way to display the Facebook Page Plugin on your WordPress website. Easy implementation using a shortcode or widget.

WP LikeJS vs Mongoose Page Plugin