William Henry Hank Green II is an American entrepreneur, musician, and vlogger, known for his YouTube channel VlogBrothers, where he and his brother, John Green, regularly upload videos. He is also the creator of the online environmental technology blog EcoGeek, and the developer of Subbable. Hank, along with his brother John Green, is the co-creator of VidCon, the world's largest online video conference/convention. He is involved with several other channels on YouTube, including Crash Course, S...
