Blog Metrics
By Joost de Valk (http://yoast.com/)
Why it's awesome: Quick view of your authors' activities
Why it was picked: Simplicity, accuracy
License: GNU General Public License
Manual Install URL: http://wordpress.org/extend/plugins/blog-metrics
Automatic Install search term: Blog Metrics
Geek level: Newbie
Configuration location: Settings | Blog Metrics
Used in: Post editor
Keeping tabs on your author's work is never a bad thing. Blog Metrics gives you a snapshot of each of your author's performance, ranging from posts per month, number of posts, total comments, number of words per post, and total trackbacks.