Kirkis' Fanfiction
Rurouni Kenshin, Breath of Fire 2, and Slayers fiction.

A Kagami Archive
Rurouni Kenshin, Maison Ikkoku, Slayers, Tenchi and notably the Ranma based "An Awakening of Demons."

Kevin D Hammel
A number of Ranma crossovers (Sailor Moon, NGE). Part of the Sailor Ranko Project.

Kenji's Nexus
Ranma, Neon Genesis Evangelion, Devil Hunter Yohko and Pokemon works.

Kimagure Angel's Fanfics
Contains Ranma and Rurouni Kenshin works.

Krista's Very Own Fanfiction
Inuyasha, Slayers, Rurouni Kenshin, Detective Conan, Gundam Wing and Please Save My Earth works.

Karsten's Favorite Fanfics
Recommendations and archived works from various series.

Kaeera's Fanfiction Archive
Fiction from Digimon, Ranma, and the American cartoon Mighty Ducks. Also features poetry.

Kagayaki Ame's Journal
Romantic fiction from Utena, Slayers, Sailor Moon, and Rurouni Kenshin.

Koneko Pavilion
Sailor Moon, Rurouni Kenshin, and Yu-Gi-Oh works.

Kara's Site
Stories written by Kara, based on series including Rurouni Kenshin and Gundam Wing. Also includes images from the series.

Koishii Sakura Fan Fictions
Inuyasha and Rurouni Kenshin fan fiction written by Nikki-chan.

Katrina's Fanfic Forest
Fiction from Sailor Moon and Fushigi Yuugi, as well as crossovers.