Highlights prominent HTML elements in the WYSIWYG editor, to help Editors see what they're editing. Sort of a WYSIWYM (the M is for mean).
Add tiny MCE to ContactForm7 editor
This plugin extends the HTML functionality of the kses.php file inside wp-includes by allowing additional html tags.
Automatically adds a signature to your posts. Configurable via TinyMCE on the profile page.
Allows one to add "invalid" and custom HTML elements to the TinyMCE editor.