Gerald Yeo

*NOTE: This plugin does not have oauth support. Until I have time to further develop this plugin, it will not work with the new twitter… *
<a href="http://fusedthought.com/downloads/tweeted-wordpress-plugin/" title="Tweeted" rel="nofollow ugc">Simply Tweeted</a> is a simple, no-frills plugin which updates twitter with the post title and post url upon post or page publishing.
Simply Tweeted is developed as a standalone, but it also provides integration with the <a href="http://fusedthought.com/downloads/url-shortener-wordpress-plugin/" title="URL Shortener" rel="nofollow ugc">URL Shortener</a> Plugin (Ver 2.1 and above).
As of now, it doesn’t have oauth support. But version 2.0 will probably include it.
Support via:
<ul>
<li>https://wordpress.org/tags/simply-tweeted</li>
<li>Contact me via my website.</li>
</ul>

Simply Tweeted

A no-frills, twitter updater(title and url) when post/page is published. Can be used as a standalone plugin or integrated with the URL Shortener Plugi …

Sasan Salamzadeh

<a href="http://salamzadeh.net/plugins/urlyar/" title="URLYar URL Shortener" rel="nofollow ugc">URLYar URL Shortener</a> allows you to generate shortlinks for post/pages using URLYar URL Shorteners, with a few additional features.
Features: 
* Language file as 100% translation now available at wordpress.org 
* Localization – Persian translation added (100% complete) 
* QR Code Support (using Google Chart API Or URLYar QR API) 
* Nice ID links with QR Code (i.e. http://your_site/123.qr) 
* Automatic generation of a Short URL/Shortlinks 
* Cached Shortlink – thus generated only once. 
* Choose to generate shortlinks using permalinks or the posts ID (e.g. http://your_site/index.php?p=123). 
* Relatively extensive shortlink support 
* Action Hooks available for other plugins to utilize generated shortlinks (From Ver 3.0 Onwards) 
* Nice ID links – http://your_site/123 instead of http://your_site/index.php?p=123 
* Shortcode support: Place [urlyar_shortlink] in your article where you want to display the shortened url. 
* Append a link to short URL below your post content 
* Append a link to short URL below your page content 
* Append a link to short URL below your woocommerce product content
Available Template Tags
On-demand shortening function:
<pre><code><?php urlyar_shorturl('http://www.wpnegar.com', 'urlyar'); ?>
</code></pre>
To show the generated links::
<pre><code><?php urlyar_show_shorturl($post); ?>
</code></pre>
Or if WordPress 3.0:
<pre><code><?php the_shortlink(); ?>
</code></pre>
https://codex.wordpress.org/Function_Reference/the_shortlink
Available hooks and filters
<ul>
<li>urlyar_use_shortlink (Action Hook)</li>
<li>urlyar_filter_shortlink (Filter)</li>
</ul>
Future Versions and on:
<ul>
<li>More services/features can be added upon request (https://salamzadeh.net/plugins/urlyar)</li>
</ul>
Support via:
<ul>
<li>https://wordpress.org/tags/url-shortener</li>
<li>Contact me via my website ( https://salamzadeh.net/contact/ )</li>
</ul>

URLYar URL Shortner

This plugin allows you to generate shortlinks for post/pages using URLYar URL Shorteners

Simply Tweeted vs URLYar URL Shortner