PUBLIC MARKS with tags plugin & tracking

Collusion is an experimental add-on for Firefox and allows you to see all the third parties that are tracking your movements across the Web. It will show, in real time, how that data creates a spider-web of interaction between companies and other trackers.

plugin to keep track of what is going on inside your blog. It does this by recording certain actions (such as who logged in and when) and storing this information in the form of a log. Not only that but it records the full contents of posts (and pages) and allows you to restore a post to a previous version at any time.