The Plugin Auditor plugin records details of who installed and activated each plugin on your website and why.
For multisite/network installations only. Adds columns to your network admin to show which sites are using each plugin and theme.
The only plugin that can properly audit your themes and plugins for LARGE multisite installations (1000+ sites)
Verify the integrity of a WP installation by scanning for unexpected or modified files.
Audit Trail is a plugin to keep track of what is going on inside your blog by monitoring administration functions.
Audit and create content inventory for your site. Analyze content performance and take action based on social sharing and other engagement metrics.
Lets you create a content inventory right in the WordPress Edit screens. You can mark content as redundant, outdated, trivial, or in need of a review.
UPDATE: This plugin is no longer supported. Please use 301 Redirects Plugin
Keep a snippet library of text, HTML or PHP code to be used in posts. Variables
can be set for more flexibility. Inserts directly or as shortcodes.