When Jeff Noon made his long-awaited return to science fiction, it was with a novella called Channel Sk1n, rather than a full-length novel. And Noon says that the rise of ebook publishers made it possible for him to publish a book that might have seemed too slight in print form.
Over at Forbes, Suw Charman-Anderson has an amazing two-article series about the rise of ebooks. She quotes Noon as saying, about the novella Channel Sk1n:
I know that publishers have always looked down a little on the novella. I don’t know why, because I love them, myself. So self-publishing allowed me to go with the flow and to let the story exist in its natural state. Nobody ever told me to make it longer. Maybe with some paper publishers that might well have been an issue.
Why publish a standalone novella, instead of just adding enough material to create a full-length novel? One reason that Charman-Anderson brings up is that you can publish shorter works more often, and raise your visibility. Another reason, which Noon mentions, is that this is a length that's closer to a good movie screenplay. Noon says:
I hadn’t written a novel for about ten years, so I wasn’t exactly in the ‘novelistic’ frame of mind. I’d been writing screenplays during that time, a much more succinct form. So a shorter work of fiction, just from a psychological point of view, seemed rather appealing. A way back in, if you like.