A blogger known for his comprehensive monitoring of weapons used in Syria’s civil war, Eliot ‘Brown Moses’ Higgins has become a prime source of information on the munitions — from his home in Leicester, England. Higgins largely uses Twitter to cull through images and YouTube videos from foreign jihadis, Syrian activists and government loyalists to find and disseminate the reality of what’s really happening. His unparalleled curation is widely regarded as essential by experts, aid groups and informers. —Andrew Katz