Felipe Lavín

This plugin adds an editor button that will let you use the great <a href="http://codemirror.net" rel="nofollow ugc">CodeMirror</a> editor to edit the HTML code of your posts.
This editor supports code coloring and automatic tag closing on a big editor that will let you write beautiful code on your WordPress posts.
Probably the best choice if you need to use complex HTML on your posts, or just enjoy writing in plain HTML.

CodeMirror for Post Editor

Write beautiful HTML code using the CodeMirror component for your WordPress posts.

EzineArticles

The EzineArticles WordPress Plugin allows you to submit your high quality, original WordPress blog posts to EzineArticles.com, 
view article review status and article statistics right from the WordPress interface!

EzineArticles WordPress Plugin

Submit your high-quality, original WordPress blog posts to the EzineArticles for more exposure, credibility and traffic back to your website.

CodeMirror for Post Editor vs EzineArticles WordPress Plugin