I was privileged to listen to a presentation by Dr C Mohan on IBM’s collective wisdom on technology trends yesterday at the inaugural session of WSO2Con 2011. There were many, many fascinating nuggets, but what particularly struck me was the prediction of the importance of big public data sets. The very first post I made in 2011 was on this subject. We have open data sets, but they are just there. How can we make them more usable and truly open?