WordPress Social Sharing Icons

style.css

/**
 * This is very basic styling
 */
.dg-sharing-icons ul.dg-sharing-icons-inner li i.fa {
    color: gray;
}
.dg-sharing-icons ul.dg-sharing-icons-inner li {
    display: inline-block;
    margin-right: 15px;
}
.dg-sharing-icons ul.dg-sharing-icons-inner {
    list-style-type: none;
    padding-left: 0;
    margin-left: 0;
    text-align: center;
}

wordpress-sharing-icons.php

<?php

/**
 * Function that will output sharing icons for the current page/post
 * Requirements
 * 1.) Font awesome
 * Note: This gist includes very basic styling, it is up to you to style them better.
 *
 * @author Darko Gjorgjijoski <dg@darkog.com>
 */
function dg_sharing_icons() {

	global $post;

	$permalink      = get_permalink( $post );
	$featured       = get_the_post_thumbnail_url( $post, 'full' );
	$url_facebook   = esc_url( '//www.facebook.com/sharer/sharer.php?u=' . $permalink );
	$url_twitter    = esc_url( '//twitter.com/share?url=' . $permalink . '&text=' . $post->post_title );
	$url_googleplus = esc_url( '//plus.google.com/share?url=' . $permalink );
	$url_pinterest  = esc_url( '//pinterest.com/pin/create/button/?url=' . $permalink . '&media=' . $featured . '&description=' . $post->post_title . ' : ' . $permalink );
	$url_xing       = esc_url('//www.xing.com/spi/shares/new?image='.$featured.'&sc_p=b7910_cb&title='.$post->post_title.'&url='.$permalink);
	$url_email      = esc_url( 'mailto:?subject=' . $post->post_title . '&body=' . $permalink );
	?>

	<div class="dg-sharing-icons">
		<ul class="dg-sharing-icons-inner">
			<li>
				<a href="javascript:void(0);"
				   onclick="window.open('<?php echo $url_facebook; ?>', '','menubar=no,toolbar=no,resizable=yes,scrollbars=yes,height=300,width=600');return false;"
				   target="_blank"
				   title="Share On Facebook">
					<i class="fa fa-facebook"></i>
				</a>
			</li>
			<li>
				<a href="javascript:void(0);"
				   onclick="window.open('<?php echo $url_twitter; ?>','_blank','width=800,height=300')"
				   title="Share On Twitter">
					<i class="fa fa-twitter"></i>
				</a>
			</li>
			<li>
				<a href="javascript:void(0);"
				   onclick="window.open('<?php echo $url_googleplus; ?>','','menubar=no,toolbar=no,resizable=yes,scrollbars=yes,height=600,width=800');return false;"
				   title="Share On Google Plus">
					<i class="fa fa-google-plus"></i>
				</a>
			</li>
			<li>
				<a href="javascript:void(0);"
				   onclick="window.open('<?php echo $url_pinterest; ?>','pinIt','toolbar=0,status=0,width=800,height=500');"
				   title="Share On Pinterest">
					<i class="fa fa-pinterest"></i>
				</a>
			</li>
			<li>
				<a
					href="javascript:void(0);"
					onclick="window.open('<?php echo $url_xing; ?>','','toolbar=0,status=0,width=800,height=500');"
					title="Share on XING">
					<i class="fa fa-xing"></i>
				</a>
			</li>
			<li>
				<a href="mailto:?subject=<?php echo $post->post_title; ?>&body=<?php echo $permalink; ?>"
				   data-title="Contact us"
				   title="Contact us">
					<i class="fa fa-paper-plane"></i>
				</a>
			</li>
		</ul>
	</div>	
	<?php
}