Internet Movie Database: Eternal Sunshine of the Spotless Mind (2004)
http://www.imdb.com/title/tt0338013/
Hyperlinked edited resource with cast list, plot summary, reviews, message board, trivia, and more information.
Eternal Sunshine of The Spotless Mind: Official Film Website
http://www.eternalsunshine.com/
Features reviews, as well as promotional material.
Eternal Sunshine is Unforgettable
http://www.slate.com/articles/arts/movies/2004/03/forget_me_not.html
David Edelstein's (positive) review of Eternal Sunshine of the Spotless Mind for Slate
Eternal Sunshine of the Spotless Mind (Charlie Kaufman's First Draft)
http://www.imsdb.com/scripts/Eternal-Sunshine-of-the-Spotless-Mind.html
Screenwriter Charlie Kaufman's first screenplay for Eternal Sunshine of the Spotless Mind
Film Scripts Written by Charlie Kaufman
Links to download different versions of the screenplay for Eternal Sunshine of the Spotless Mind on Charlie Kaufman's website.
Eloisa to Abelard by Alexander Pope
http://www.poetryfoundation.org/poem/174158
Full text of the poem that inspired the title to the film, from the Poetry Foundation.