We have been recently experimenting with a new way of viewing Steam Leaderboards.
As a result we have just launched a beta Facebook application that collects and aggregates all Steam Leaderboards data.
Zombie Driver stats on Facebook

Zombie Driver stats on Facebook
You can now check your own or your friends' online standings directly from within a web browser.
We have also added a new feature called Global Leaderboard which sums the points from all maps for an individual player.
We are very interested in hearing your feedback about this new idea and how you would like us to improve, expand or change any features.