[kfor]

For those interested in global health, we've tried to collate as much data as possible at http://ghdx.healthdata.org/ (disclosure: I'm the director of data science at IHME, which hosts this).

Note that most of this data is population level epidemiologic and administrative stuff, not the detailed biomedical measurements I see most people requesting - but I promise you there's some really interesting things that can be done with it nonetheless!