Thread:AVoraciousReader/@comment-28083312-20170617150452/@comment-30270234-20170617155604

Not as self-explanatory as I thought, but fairly easy nonetheless.

Novels: "DF??ch??" is book number+chapter.

Stories: "DF-???" where ??? are the first letters of the title. "DF-LH" -> "Love Hurts", "DF-IMBT" -> "It's My Birthday Too".

Wikipedia: same as stories, except it's "WP-??" rather than "DF-??"

Other sites: "???" the first letters of each word making up the URL.