The Alternate History List
Uchronia.net is one of the longest-running and most content-filled alternate history websites on the entire Internet. First founded in 1991, its goal is to amass a list of possibly all published alternate history fiction, in any language, from the entirety of human literary history. From the earliest AH-themed essays written back in Antiquity to the latest released alternate history novels, Uchronia is the best reference website when it comes to published literary AH fiction.
Not to be confused with the similarly named French AH site, Uchronie.com.