Valley Forge
Site focusing on the space freighter Valley Forge from 'Silent Running', including many photos and model images.
http://www.lunadude.com/pet_proj/valley_forge/index.html

IMDb: The Making of 'Silent Running'
Documentary that includes interviews with the film's cast and crew, who share their experiences of working on the set and discuss the efforts that went into bringing the project to completion.
http://us.imdb.com/title/tt0196732/

The Making of "Silent Running"
Award winning labour of love documentary by director/cinematographer Charles Barbee, about the classic science fiction film by Douglas Trumbull. Details and comments from viewers.
http://www.barbeefilm.com/tmsr01.htm

The Drone Room
Site specialising in the three drones, Huey, Dewey and Louie, from 'Silent Running'. Photos and viewer comments.
http://www.robotbuilders.net/droneroom/

Home Theater Info: Silent Running
Review.
http://hometheaterinfo.com/silent.htm

MRQE: Silent Running
Reviews available for Silent Running (1972).
http://www.mrqe.com/lookup?silent+running

Stomp Tokyo: Silent Running
Review and pictures.
http://www.stomptokyo.com/movies/silent-running.html

Science Fiction, Horror and Fantasy Film Review: Silent Running
Review of the film.
http://www.moria.co.nz/sf/silentrunning.htm

Rottentomatoes: Silent Running
Reviews, movie info, articles, and forum.
http://www.rottentomatoes.com/m/silent_running/