Robert Smithson Official web site for the Estate of Robert Smithson, respected earthworks artist. http://www.robertsmithson.com/

Art and Nature Discussion of earthworks on the personal website of a Doctoral candidate in Art History. http://mitglied.lycos.de/artnnature/an-frameset.htm

ArchINFORM International architectural database with projects and images of the movement. http://www.archinform.de/stich/219.htm?ID=f8bb3e022635330d46b10a073e33f08f