Major contributions to Wikipedia by Michael Rawdon ( talk):

• The Avengers (comics): Wrote the original article.
• Justice League: Major work on the main article, as well as major revisions to The Flash, Green Lantern, Hawkman
• Justice Society of America: Added significant content to the history, as well as major revisions to Doctor Fate.
• George Pérez: Wrote the original article.
• Legion of Super-Heroes: Completely overhauled and greatly expanded the article.
• Marvel Comics: Fleshed out the stub into a full article.
• Planetary: Wrote the original article.
• The Sandman: Reworked the disambiguation pages, made contributions to many related articles.
• Teen Titans: Wrote the original non-stub article
• X-Men: Major revision work and general damage control, including to Cyclops, Marvel Girl/Phoenix, The Beast, The Angel, Iceman, Wolverine, Storm, Colossus, Nightcrawler, Banshee, Shadowcat and Rogue

• Albert Campion: Wrote the original article.
• George R. R. Martin: Fleshed out biography and bibliography.
• H. Beam Piper: Wrote the original article.
• Vernor Vinge: Major revision, added bibliography

• Jadis: Wrote the original article.
• Jethro Tull (band): Wrote most of the band history.
• Men Without Hats: Wrote the original article.

• Fantasy baseball: Major revision to the article.
• Sabermetrics: Added a bunch of content on specific sabermetric inventions.

• Homicide: Life on the Street: Wrote the original article
• Star Trek: Major contributions to the feature film articles ( Star Trek: The Motion Picture and later).

• Retcon: Credited Roy Thomas with coining the term "retroactive continuity".