Yahoo! Movies
- Provides a description, cast list, user reviews, links, and a message board.
- http://movies.yahoo.com/movie/1800365587/info

Rotten Tomatoes: Plan 9 from Outer Space
- Reviews, synopsis, mistakes, quotes, credits, posters, links, and a forum.
- http://www.rottentomatoes.com/m/plan_9_from_outer_space/

IMDb: Plan 9 from Outer Space (1958)
- Plot outlines, taglines, cast list, trivia, movie mistakes, user reviews, and a message board.
- http://www.imdb.com/title/tt0052077/

Bad Movies: Plan 9 from Outer Space
- Review, plot summary, stills, audio clips, and a video clip.
- http://www.badmovies.org/movies/plannine/

Allscifi Plan 9 Spotlight
- Very detailed analysis of the movie, and listings of similar films. Sign up to become a movie scholar on the site.
- http://www.allscifi.com/Topics/Info_3936.asp

Bright Lights Film Journal: Plan 9 from Outer Space
- Plan 9 from Outer Space (1958): Ed Wood's crown jewel, and the film by which he is best known. Subversion is the film's driving force, and Wood does it with style.
- http://www.brightlightsfilm.com/28/edwood1.html