Fantasy & Science-fiction:

It may be that several pages are not available in English.

Bibliotheka Phantastika - this site has many bibliographical informations about authors and their works
sffworld - this site is mainly about science fiction
On the beginnings of Fantasy (German only)
Terry Pratchett:

Jim Butcher: the Dresden files - a wizard as private investigator in mysterious cases
Eoin Colfer: Artemis Fowl & Co.
Walter Moers' Zamonien - Welcome to the eighth continent
MichaelCrichton.net - he didn't only reanimated the dinosaurs in Jurassic Park but also created the ER - Emergency Room
Philip Pullman - His Dark Materials and other Stories ...
Tad Williams - author of Otherland, Shadow March and the Dragonbone Chair-Saga, I wonder why it should have had in the original version only three volumes?
R. Scott Bakker: The Prince of Nothing (dt. Der Krieg der Propheten)
Douglas Adams (R.I.P.): Floor 42
J.R.R. Tolkien (R.I.P.): links about Tolkien & the Lord of the Rings
Links about Joanne K. Rowling & Harry Potter
Wolfgang Hohlbein
Meister Mahet: Markus Heitz - the "new" star of fantasy literature from Germany
Anne Rice:

Michael Ende - A really nice made page but only with the American translations and so not all his works are named there
Ingas Michael Ende Seite - This site has his complete works listed
a short portrait of the author ont he sites of the publishing company of most of his original works
Zur "Unendlichen Geschichte" a comment about the "Neverending story"
Die Legenden von Phantásien - The German publishing company Droemer Knaur asked several German authors to tell which is "the other story to be told on a different occasion" ... these books where published with the subtitle "The Legends of Phantásien"

many missing authors may be found in the bibliotheka phantastika.