mitcho (Michael Yoshitaka Erlewine)

<a href="http://daringfireball.net/projects/markdown/syntax" rel="nofollow ugc">Markdown syntax</a> allows you to write using an easy-to-read, easy-to-write plain text format.
Markdown for WordPress and bbPress (Markdown-WPBB) is based on the famed PHP Markdown Extra by <a href="http://www.michelf.com/projects/php-markdown/" rel="nofollow ugc">Michel Fortin</a>, in turn based on the original Perl version by <a href="http://www.daringfireball.net/" rel="nofollow ugc">John Gruber</a>. All I did was make the same package work with bbPress too. ^^

Markdown for WordPress and bbPress

A text-to-HTML conversion tool for web writers

Robert Seyfriedsberger

<a href="http://www.ioncube.com" rel="nofollow ugc">ionCube encoder</a> is an established industry standard solution for PHP encoding. In order to run encrypted files on your webserver, it has have ionCube encoders installed. This plugin checks if this is true and if not, you are given a guidance through the official loader wizard which determines what exactly has to be installed on your server on how this can be achieved (if you are not admin of your webserver, you are given instructions which you can easily forward to your admin).

ionCube tester plus

This plugin helps you to determine if the ionCube loaders are installed correctly on your web server.

Markdown for WordPress and bbPress vs ionCube tester plus