Arunas Liuiza

This plugin enables users to easily note the source of republished text. It adds a custom post type ‘Sources’ and a metabox to choose from various sources in post editing window.
ATTENTION: This is still an early development version (aka ALPHA), thus use with your own risk. It has the basic functionality, but not many configuration options and some bugs are probably present.
Basic functions:
<ul>
<li>Allows to create list of possible sources using Custom Post Types functionality;</li>
<li>Creates a meta-box in post editor screen to choose from list of available sources;</li>
<li>Customizable template – you can use your own html and shorttags %title%, %title_attr%, %text%, %img%, %img_h%, %img_w% and %link%;</li>
<li>You can use template tag <code><?php tinysource_show(); ?></code> to insert plugin output;</li>
</ul>
TO DO:
<ul>
<li>More customization options</li>
<li>Automatic insertion after post text</li>
<li>Localization</li>
</ul>

tinySource

This plugin enables users to easily note the source of republished text. EARLY DEVELOPMENT VERSION. DO NOT USE IN PRODUCTION ENVIRONMENT.

Allow users to post source codes in comments using [code][/code] tag. No syntax highlight at the moment, it just replaces the special characters.
Features
<ul>
<li>Replaces the special characters for the comment texts wrapped in [code][/code] tags</li>
<li>You can show a message after comment form to tell your visitor know they can post codes using [code][/code] tags</li>
</ul>
<a href="http://zenverse.net/source-codes-in-comments-plugin/" rel="nofollow ugc">Plugin Info Page</a> | <a href="http://zenverse.net/" rel="nofollow ugc">Plugin Author</a>

Source Codes in Comments

Allow users to post source codes in comments using [code][/code] tag. No syntax highlight at the moment, it just replaces the special characters.

tinySource vs Source Codes in Comments