Those of you looking to participate in analytics/data science contests and win prize money can do so by signing up at CrowdAnalytix.com. Couple of contests now live and the links are below.
If you work at a Non Profit or University, you can host a Competition for free at CrowdANALYTIX-a community of data experts, where the solvers of the community will help you solve your problem . You can use the community to help with your research or project.You get multiple solutions to your problem and your students and the solvers learn new skills and develop even better solutions as all content generated (reports, algorithms etc.) will be made available for everyone to access.
Take a look at the FAQs below for more information on how to submit your idea.
Submit your idea by the 20th of May, 2015.
http://info.crowdanalytix.com/host-your-learning-contest-faq