The Literature Resource Center and Literature Online are excellent resources for biographical information on authors. The links are listed below.
Literature Online - LION|
Literature Online features a collection of over 260,000 works of American, English, and Modern poetry, drama, and prose with complementary reference and secondary resources. More Info...
Literature Resource Center
Provides information on literary figures from all time periods writing in such genres as fiction, nonfiction, poetry, drama, history, journalism, and more. More Info...
Provides access and searching capability to the Critical Insights book series comprised of classic and current literary criticism. More Info...