Both the wiki (https://github.com/BIDData/BIDMach/wiki/Installing-and-Running#Installing_a_Release_Bundle) and the readme (https://github.com/BIDData/BIDMach/blob/master/README.md) link to http://bid2.berkeley.edu/bid-data-project/download/ which is a broken link. It appears that BID project now lives at http://bid.berkeley.edu/BIDdata/ but this is mostly just a placeholder website with no direct links to the executable bundle.