Wikipedia: Calvin and Hobbes
- A compilation of information about the comic strip.
- http://en.wikipedia.org/wiki/Calvin_and_Hobbes

Everything Calvin and Hobbes
- Discussion group at Yahoo!.
- http://groups.yahoo.com/group/everythingcalvinandhobbes/

Don Markstein's Toonopedia: Calvin and Hobbes
- Brief information on the background of the comic.
- http://www.toonopedia.com/calhobbs.htm

The Calvin and Hobbes Album
- Offers a page for the readers' favorite comic strips, some animations and downloads.
- http://mysite.verizon.net/vzesvylf/

Teaching with Calvin and Hobbes
- Information regarding one of the only licenced Calvin and Hobbes items other than the regular book collections.
- http://teachingwithcalvinandhobbes.blogspot.com/

Simply Calvin and Hobbes
- Offers a "weird facts" section which includes observations the webmaster found while reading the books, as well as instructions on how to play Calvinball.
- http://www.simplych.com/

Calvin and Hobbes' Magical World
- Contains a bibliography from around the world, names of the characters in other countries, a worldwide publishers' list, and poems.
- http://home3.inet.tele.dk/stadil/calvin.htm

Calvin and Hobbes.com
- Official site featuring thirty day archive of cartoons, one re-released every day. Users can view the complete archive for an annual fee. Also, information on Bill Watterson, free e-postcards and sales of official prints.
- http://www.gocomics.com/calvinandhobbes/

Calvin and Hobbes Hideout
- Offers games, parody, fan art, and links.
- http://www.calvinandhobbeshideout.com/

Gouri's 'Calvin and Hobbes' World of Fun
- Meet Calvin, Hobbes, the rest of the cast, read comic strips and poems, tributes, the book collection and view pictures.
- http://www.gourismitha.com/CalvinandHobbes/calvinandhobbes.html

Calvin and Hobbes Unofficial Website
- A tribute to Calvin and Hobbes. Information on the characters, the books, and links.
- http://www.calvinandhobbes.co.uk/

Calvin and Hobbes at uComics
- Official AOL site. Includes 30 day archive of comics. Also, information on Bill Watterson, as well as fan letters to him about his retirement, free e-postcards and sales of official prints.
- http://ucomics.aol.com/calvinandhobbes/

Digital Calvin and Hobbes
- Includes games, a discussion forum, and quotes. Allows users to create a comic strip.
- http://www.calvin-and-hobbes.org

Jawbone Radio: In Search of Bill Watterson
- A podcast interview with Bill Watterson's mother.
- http://jawboneradio.blogspot.com/2005/11/jawbone-81-in-search-of-bill-watterson.html

Andrews McMeel Publishing: Calvin and Hobbes Home Page
- Official website of "The Complete Calvin and Hobbes" from publisher Andrews McMeel.
- http://www.andrewsmcmeel.com/calvinandhobbes

The Calvin and Hobbes Wonderland
- Offers pictures, quotes, wallpaper and comics.
- http://www.lovine.com/hobbes/

Calvin and Hobbes Magic On Paper
- Articles about the comic strip, rare artwork, and a list of all legal merchandise.
- http://ignatz.brinkster.net/calvin.html

Calvinball Rules
- How to play Calvinball (illustrated).
- http://bartel.org/calvinball/

Calvin and Hobbes: Unplugged
- Tributes by other artists, collection of Watterson interviews, and bibliography.
- http://www.kerzap.com/calvin/

Cool Calvin & Hobbes Collection
- Includes the Calvin Alphabet, how to make a G.R.O.S.S hat, photograph merges, and "The Calvin and Hobbes Gateway", an extensive links page.
- http://www.nivmedia.com/calvin/