The International Organization for Migration (IOM) just published their official Data Protection Manual. This report is hugely informative and should be required reading. At the same time, the 150-page report does not mention social media even once. This is perfectly understandable given IOM's work, but there is no denying that disaster-affected communities are becoming more digitally-enabled—and thus increasingly the source of important, user-generated information.
On Crowdsourcing, Crisis Mapping and Data Protection Standards
Now someone else has to do this again, but properly