A number of online literature archives provide material on a particular literary movement or the work of a singularly accomplished author. Falling into the latter category is the extremely helpful Walt Whitman Archive, which is under the direction of Kenneth M. Price of the University of Nebraska-Lincoln and Ed Folsom at the University of Iowa. With significant support from a host of organizations and institutions, the Archive has grown over the past few years to include a host of versions of Whitman's Leaves of Grass, his other diverse poetry manuscripts, and an integrated guide to the aforementioned manuscripts. This is far from all the site offers, as visitors can go on to read a detailed biography of Whitman, information about his writing disciples (such as John Burroughs), and a rather comprehensive bibliography of articles, books, chapters of books and poems about Whitman published from 1975 to the present.