"Users are generating that reality every day at The New York Public Library through two landmark crowdsourcing endeavors, What’s on the Menu? and Map Rectifier. The former enlists the public in the transcription of historical menus, and the latter allows users to “rectify” historical maps by overlaying them on modern ones. Both projects stand out amid a glut of competitors as refreshingly guilt-free and subliminally educational uses of online time. With every menu transcribed and map rectified, users are supporting research in the humanities"