The two-year award covers tuition and fees and provides a $37,000 yearly grant. 11 were awarded overall.
Facebook's spotlight on Chenhao's research, which is in the broad area of social computing, with a focus on language and social interaction: https://www.facebook.com/notes/facebook-fellowship-program/2015-2016-fellowship-winner-highlight-chenhao-tan-cornell-university/1797400167152568
Full announcement of the 2015 winners: https://www.facebook.com/fellowship/posts/1794215174137734