Leaderboards are a great way to maintein your users motivated! I found a really easy way to create a leaderboard using dreamlo.
First, go to dreamlo.com and click in the Get yours button
Once you click on it, you will get your private URL SAVE IT!!! As it is your dashboard
Once you have created your dashboards you will have different URLs, these are used to update your data, just copy and paste the URLs to see what happen, a short description will also appear in each line as a quick overview of what the URL does on the server side
Getting your dashboard data
Would you like to get your data as JSON,XML, Comma delimited? Well you can definitely use any URL in the next section to get your data as preferred.
I hope this helps you a lot! Cheers!