This question about magic in Discworld set me thinking a bit. The earliest books in the series are qualitatively different from the later volumes. The Colour of Magic is an episodic tale, parodying a number of other famous fantasy (and science fiction stories). In The Light Fantastic, Pratchett introduces more of a coherent plot, although one based around the magic system—a parody of the Vancian magic from The Dying Earth—that was introduced in the first book.
I think I am probably very much in the minority in thinking that The Colour of Magic is, by a significant margin, the best Discworld novel. (I do not really care for Pratchett's plots, it turns out, and The Colour of Magic has relatively little plot.) However, I have never seen a comprehensive list of all the works that Pratchett decided to parody in the first book.
So I am asking: What are all the specific parodies present in The Colour of Magic? (Lest anyone think this kind of list question should be off topic, I point out that it is not really very different from questions that show a poster image and ask to have every element in the image identified.)