This is a good start page from the New York Times. On it you'll find a photo and lots of links to articles about and by Dillard, discussing her life and her work. (Free registration required.)
http://www.nytimes.com/books/99/03/28/specials/dillard.html
Want some more information about Dillard's working life? Click here for her homepage at Wesleyan University. It has a photo, some information about her work, and a brief biography.
http://www.anniedillard.com/
Cultural
Dillard's written a book about writing called The Writing Life. The author of this review generally likes Dillard's work, but not this book. Read the review and decide whether you'd like to pursue The Writing Life further. (Free registration required.)
http://www.nytimes.com/books/99/03/28/specials/dillard-writing.html
Interested in pursuing the mystical and spiritual aspects of Dillard's work? This essay from CrossCurrents.org examines her writing in the light of “ecotheology” and is well worth a careful look.
http://www.crosscurrents.org/dillard.htm