IMDb.com : Sean Penn: Full filmography, biographical information, awards and nominations, photo gallery, articles, contact information, TV schedule, and titles for sale.
News of the Past: Sean Penn: Recapping of events happening on or around Sean Penn's birthday.
Raging Bull's Sean Penn Page: Fansite with biography, filmography, images from his movies, and news. Last updated in February, 1999.
Sean Penn News: Topix.net: News about Sean Penn continually updated from around the net.
Thespian Net : Sean Penn: Contains film and TV credits, picture gallery, and links to articles about the actor.