GraphicEdit

This plug-in allows you to create and place a GitHub css3 badge to your webpage on wordpress. With the help of this plug-in you create a css3 badge for your users or followers helping them to follow your GitHub account. This plug-in is very useful for GitHub users, for users who would like to promote his/her GitHub on WordPress.
Links: <a href="http://graphicedit.com/" rel="nofollow ugc">Author Homepage</a>

GitHub Badge

This plug-in allows you to create and place a GitHub css3 badge to your webpage on wordpress. With the help of this plug-in you create a css3 badge fo …

cgarvey

Sometimes you want to put the base URL (that of the blog, or that of the active template) in your content editor. Times when the template customising isn’t quite flexible enough. 
With this plugin you can use [url_base] to output the base URL of the blog (as set in your Settings). Or, you can use [url_template] to output the URL of the active template.
For example <code><img src="[url_base]/test.png /></code> in your editor might output <code><img src="http://localhost/wordpress/test.png" /></code> (if http://localhost/wordpress is what you have configured as your blog URL in Settings).
The supported short codes are as follows: 
* [url_base] – the configured blog URL (set in Settings). E.g. http://localhost/wordpress 
* [url_template] – the URL of the active template. E.g. http://localhost/wordpress/wp-content/themes/mytheme1
<h3>License</h3>
This plugin uses the GPLv3 license.

URL ShortCodes

URL ShortCodes plugin adds support for a basic short codes to use in your post/page editor that produce correct absolute URLs.

GitHub Badge vs URL ShortCodes