Some of my favorite Fanfic places around the 'net.
Royal Academy of Bards A massive (primarily GLBT) online fiction repository. It began as a Xena-related fanfic site and grew from there into linking, reviewing, and archiving, Voyager fanfic, uber fiction, and original fiction, poetry, and drabbles.
Heaven of Mine A massive (primarily GLBT) directory either storing or pointing to much of the Voyager-related (Janeway/Seven primarily) fanfiction available on the internet.
Novel Expectations The home of fiction and fanfiction by Gina L. Dartt.
Voyager Conspiracy The home of Sazzy's Voyager fanfiction, uber fiction, and music videos and much, much more.
Perfection The home of DAx's Voyager fanfiction.
Uber Etc A website dedicated to linking to all the in-progress femslash fanfiction around the 'net. Multiple fandoms, multiple authors checked daily.