Post Editor Zen Coding

This plugin allows you add your own buttons to the post editor's TEXT mode toolbar.

This is an drag & drop widget for syntax highlighting of code blocks.

Syntax Highlighting in WordPress Plugins and Themes Editor.

Plugin provides syntax highlighting for about 116 programming languages via Geshi.

Adds HTML tab to the post editor which shows the raw source of the page and is highlighted with the Ace Editor

This plugin allows you add your own buttons to the post editor's toolbar.

This plugin lets you select a specific template for a category, just like pages

This plugin adds Google Plus Comments system, Facebook comments and / or Disqus Comments to your site.

this plugin helps you to limit the number of posts/pages/custom post types each user can create on your site.

This plugin lets you select a specific template for a taxonomy term, just like pages

create a wiki like TOC (table of contents) in your posts or pages using shortcode.

A plugin that integrates The Awesome Aviary editor In the WordPress Media Library.