Recently I have been hearing people talking about “big data”. Supposedly it is a popular concept nowadays in the IT field. So I searched on Coursera and came across this course “Big Data and Eduction”. It was offered by Ryan Baker at the Columbia University in Oct 2013. Unfortunately it is no longer offered, but here is the archived course mateirals: http://www.columbia.edu/~rsb2162/bigdataeducation.html
I started watching the course videos and being finding different useful information. For example: the largest public data repository for educational software activities at PSLC data shop: https://pslcdatashop.web.cmu.edu/
I think it would be interesting to run some data analysis based on certain data there and to see what can be “mined”.