Criteo AutoRoll
AutoRoll is a blog widget that displays links to blogs that your readers should like. Based on each unique reader's affinity for each specific blog, the Criteo Recommendation Engine will compute on a real-time basis the relative affinity of all blogs, and it automatically displays the Top 10 unique links on each blog. You will provide your readers with a very entertaining blogroll and you will receive highly qualified incoming traffic to your blog.
Example:

