https://www.drivendata.org/ https://www.drivendata.org/ "Data science competitions to save the world" OK, the tag line might be a bit much, but here's a snipp

https://www.drivendata.org/ https://www.drivendata.org/ "Data science competitions to save the world" OK, the tag line might be a bit much, but here's a snippet from one of their current competitions: Your goal is to create better models to estimate populations for hard-to-reach sites in the Antarctic, and thereby greatly improve our ability to use penguins to monitor the health of the Southern Ocean!