On a recent Saturday afternoon in the heart of Harlem, dozens of people click-clacked on their laptops in the Schomburg Center for the Black Life Matters Wikipedia edit-a-thon. Organized by the AfroCROWD initiative with the Wikimedia Foundation, the event was in tandem with Black WikiHistory Month, and its mission was to recruit more Wikipedians of color, to rectify the online encyclopedia’s gaping diversity problem.