The Dickinson Electronic Archives is "devoted to the study of Emily Dickinson, her writing practices, writings directly
influencing her work, and critical and creative writings generated by her work." Online since 1997, the site contains a nice selection of her correspondence with friends and colleagues and such critical articles as "Emily Dickinson Writing a Poem" and "The Letter-Poem, A Dickinson Genre." the "Titanic Operas" section has commentaries by such writers as Joyce Carol Oates and Gwendolyn Brooks to the works of the Belle of Amherst. <
http://www.emilydickinson.org/>