Rotten Tomatoes
- A dozen reviews and reactions from critics. Includes some general movie information.
- http://www.rottentomatoes.com/m/1000085-2001_a_space_odyssey/

Bright Lights Film Journal: The Interpretative Odyssey of 2001
- Critical essay by Robert Castle.
- http://www.brightlightsfilm.com/46/2001.htm

Ebert's Great Movies
- Commentary and analysis from film critic Roger Ebert. "The genius is not in how much Stanley Kubrick does in '2001: A Space Odyssey,' but in how little."
- http://rogerebert.suntimes.com/apps/pbcs.dll/article?AID=/19970327/REVIEWS08/401010362/

The Sci-Fi Movie Page: 2001 - A Space Odyssey
- Review by James O'Ehley.
- http://www.scifimoviepage.com/septpick.html

Future Movies
- A positive review of the remastered DVD.
- http://www.futuremovies.co.uk/review.asp?ID=28

New York Times
- A very positive evaluation, published the day after the movie opened in 1968. Free registration required.
- http://www.nytimes.com/library/film/040468kubrick-2001.html

Epinions.com
- Consumer ratings of the movie.
- http://www.epinions.com/mvie_mu-1000085

Cosmopolis
- A review of Leonard F. Wheat's book on a triple allegory in 2001, a movie that "tells three hidden stories: Homer's The Odyssey; a spoofy tale based on science-fiction writer Arthur C. Clarke's idea of man-machine symbiosis; and Friedrich Nietzsche's
- http://www.cosmopolis.ch/english/cosmo9/kubrick2001.htm

Allscifi
- Summary reviews and a list of literary elements and themes in the movie.
- http://www.allscifi.com/Topics/Info_3719.asp

Apollo Movie Guide
- Brief summary of the film. [91/100]
- http://apolloguide.com/mov_fullrev.asp?CID=230

All-Reviews.com
- A small assortment of reviews.
- http://www.all-reviews.com/videos/spaceodyssey.htm

Greatest Films
- An extensive review, synopsis, and discussion of the film, by Tim Dirks.
- http://www.filmsite.org/twot.html