Franz Josef Kaiser

<h4>Internal Link Checker</h4>
Adds a meta box to the post edit screen that shows all internal links from other posts to the currently displayed post. The plugin works out of the box.

Plugin Name:		Internal Link Checker

Flector

You can use this plugin to hide part of the text of a post in a nicely-formatted container that will becomes unhidden when clicked on. The plugin can be useful for creating FAQ pages, hiding large pictures, and things like that.
The plugin creates its own “Spoiler” button in the visual editor, but you can also add spoilers directly using tags. For example:
<pre><code>[spoiler title='Title']Spoiler content[/spoiler]
</code></pre>
or
<pre><code>[spoiler title='Title' collapse_link='no']Spoiler content[/spoiler]
</code></pre>
If you liked my plugin, please rate it.

BBSpoiler

This plugin allows you to hide text under the tags [spoiler]your text[/spoiler].

Plugin Name: Internal Link Checker vs BBSpoiler