20 Weird & Wonderful Datasets for Machine Learning

They say great data is 95% of the problem in machine learning. We saw first hand at Udacity that this is the case, with the amazing reception from the machine learning community when we open sourced over 250GB of driving data. But, finding interesting data is really hard, and actively holds the industry back from progress. In trying to learn more about this problem I searched far and wide, and cataloged just a sliver of the datasets I found. I've also been fascinated with the militarized interstates disputes dataset, which includes 200 years of international threats and conflicts.