The Classroom and the CrowdFor more than a decade, Al Filreis has taught a free online course about experimental poetry, known as "ModPo," that has drawn some 435,000 students from 179 countries. Online classes even a fraction of ModPo's size have been criticised as impersonal and unengaging. But the citizens of ModPo have formed a generous and enduring intellectual community as together they read poems typically dismissed as difficult and inaccessible. In The Classroom and the