Until Elon Musk bought Twitter last fall, April Reign thought she couldn't live without the platform. Over 13 years and 641,000 tweets, she became part of a community of extremely online Black users who shared everything from funny memes to job opportunities.
In 2015, that community turned Reign's dashed-off hashtag - #OscarsSoWhite - into a viral campaign that sparked real-world change, pushing the Academy of Motion Picture Arts and Sciences to triple the number of Oscar-voting members of color. Other hashtags - #BlackLivesMatter, #SayHerName, #HandsUpDontShoot - became touchstones for racial justice.