WP-Click-Tracker (wp-click-track) free WordPress plugin

The click tracker works in 2 modes:
1. Scans posts and rewrites them to include a tracking element
2. Enables users to create stand alone trackable links that can be embedded in posts or offsite.

There is advanced reporting for viewing the click statistics. Reports include:
1. Top Referrers of clicks. Helps to coorelate where the popular links are at