Dan Poulton

This very simple plugin generates a Bitly shortlink and saves it to your WordPress database.
It does this via two different methods:
<ul>
<li>Publish a page or post for the first time</li>
<li>Click the generate all button</li>
</ul>
<a href="https://dan-p.net/wordpress-plugins/danp-bitly-urls" rel="nofollow ugc">Getting Started Guide</a>

DanP Bitly URLs

Generate Bitly short links for posts and pages every time you first publish. Already have posts? You can generate a link for all posts and pages too.

Dan Cameron

Shortened Post URLs for twitter or any other social network that may need a short url. Default short URL is http://siteurl.com/p/175 ( where 175 is the post id ) but can easily be changed to whatever you’d like ( maybe http://siteurl.com/175 ).
Example template modifications would be “<a class="share-via-twitter" href="http://twitter.com/home?status=Reading: /s/” title=”Tweet this post”>Tweet This</a>“
Inspiration from 5thirtyone.com ( http://5thirtyone.com/archives/2075 )
<h3>Support</h3>
<a href="https://redmine.sproutventure.com/projects/show/short-post-urls" title="Support Forums and Project Center" rel="nofollow ugc">Support Forums and Project Center</a>

Short Post URLS

Shortened Post URLs for twitter or any other social network that may need a short url. Default short URL is http://siteurl.

DanP Bitly URLs vs Short Post URLS