Long Live The Legion
- Collection of LSH information, with a faq, information on Omnicom (the LSH mailing list, including archives), a who is who and timeline.
- http://www.cs.cmu.edu/afs/cs/user/vernon/www/lsh.html

Legion of Super-Heroes Help File
- Hosts the legion.hlp download, a literally massive help file, containing detailed information on both the Pre-Zero Hour Legion and the post-ZH Legion.
- http://www.adamarnold.net/lshhlp/

The Legion of Super-Heroes Online Companion
- Includes character biographies, story lines, and covers.
- http://www.legiononline.net/

Legends of Lost Legionnaires
- Information on the version(s) of the Legion of Super-Heroes prior to 1994's Zero Hour mini-series.
- http://www.speakeasy.org/~mohundro/lsh/

Get-a-Life Boy's Legion of Super-Heroes
- Includes stories index, alternative universe legions, and links.
- http://www.readersadvice.com/lsh/lsh.html

The Legion of Super-Heroes
- Extensive chronology and information about characters.
- http://www.mykey3000.com/cosmicteams/legion/index.html

The Unofficial DC Comics Index Series: The Legion of Super-Heroes
- Fairly complete title index with information about some characters.
- http://www.dcuguide.com/LSH_Home.php

The Legion of Super-Heroes Clubhouse
- Database and chronology dedicated to the original Silver-Age Legion of Super-Heroes.
- http://members.shaw.ca/legion_of_super-heroes/mainpage.htm

Legion World
- An active message board, with posters including the former artist Steve Lightle.
- http://www.legionworld.net/

The Legion of Super-Heroes Message Board
- A message board devoted to the series.
- http://members2.boardhost.com/LegionSH/