Digital Research
- History archive of firm founded by Gary and Dorothy Kildall (nee McEwen) in 1974, which soon became the first successful PC OS company. Tributes to the Kildalls, information on CP/M, MS/PC-DOS, Caldera v. Microsoft, many related topics.
- http://www.digitalresearch.biz/

Wikipedia: Gary Kildall
- Encyclopedia article, with links to many related topics.
- http://en.wikipedia.org/wiki/Gary_Kildall

Eulogy of Gary Kildall
- By Tom Rolander. Discusses Mr. Kildall's contributions to computing.
- http://www.joewein.de/eulogy.htm

The Gary Kildall Legacy
- Biography and portrait.
- http://www.cadigital.com/kildall.htm