From Fan History Wiki
- The first Due South story on FanFiction.Net, Benny, The Red-Clad Mountie by Dianne la Mercenaire, was published on March 18, 1999. 
- On March 18, 1999, the mailing list LesbianXena was created for Xena fan fiction. 
- On March 18, 2001, Royal Academy of Bards was created. 
- gerardxfrankie, a My Chemical Romance LiveJournal community, was founded on March 18, 2005.
- On March 18, 2006, the LiveJournal community 10tunes was founded.  It was a community created for Harry Potter fan fiction centered around music and song.
- alien_altars was created on March 18, 2007 as a challenge community for femslash cliches. Some cliches include About to die, must have hot sex, Aliens made us do it, Amnesia, Aphrodisiacs/Sex pollen, Caught masturbating, Everyone thinks we're doing it, Forced marriage, Forced to share a bed/sleeping bag/tent, Fuzzy morning after or "do you remember what we did last night?", Genderswitch (one or both women is turned into a man), Huddling for warmth, Insomnia, Jealousy, Kid fic are just a few of the examples to chose from.