Dudeism.com
The website for the informal religion that sprang from the film.
15 Facts About The Big Lebowski
http://mentalfloss.com/article/61382/15-things-you-probably-didnt-know-about-big-lebowski
Facts about the film on Mental Floss.
‘The Big Lebowski’ Reunion: Steve Buscemi Tells Jeff Bridges and John Goodman Why He Almost Turned Down the Cult Classic
Jeff Bridges, John Goodman, and Steve Buscemi interviewed about the film.