A real worry is the possibility Amazon will combine its content creation with its sales and distribution arm. For example, it would be much easier for a company like Amazon to set up an advance-free scenario with an author and provide monthly royalties based on its online sales. The infrastructure already exists and if Amazon had a large enough market share this set up might be very attractive to authors.
One publisher at London’s Book Fair said “It’s only a matter of time before they approach a major author to sign directly with them.'” Janet Evanovich decided to forego having a professional agent in favor of having her son handle this matter for her. Someone like Evanovich, with a huge and loyal following, could decide that cutting out one more step in the publishing to shelf process would increase her royalties.
Via Publishers Weekly.