The Modernism Lab is a virtual space dedicated to collaborative research into the roots of literary modernism. We hope, by a process of shared investigation, to describe the emergence of modernism out of a background of social, political, and existential ferment. The project covers the period 1914-1926, from the outbreak of the first world war to the full-blown emergence of English modernism. The Lab has supported undergraduate courses at Yale on Modern Poetry, the Modern British Novel, Modernist London, and Joyce's Ulysses and a graduate course in English and Comparative Literature, "Moderns, 1914-1926," as well as a class on modern German literature at the University of Notre Dame. Students in the classes have contributed materials to the website and used it as the platform for their research. The main components of the website are an innovative research tool, YNote, containing information on the activities of 24 leading modernist writers during this crucial period and a wiki consisting of brief interpretive essays on literary works and movements of the period.