The website Cozy-Mystery.com offers lists of upcoming mystery novels for the current month and the following month. Amazon.com offers release dates on mysteries further out, but they are mixed in with the thriller and suspense genres as well.
On Cozy-Mystery.com, the list of upcoming mystery novels comes with a list of the book covers on the side and a text list with links to Amazon.com.
StopYoureKillingMe.com is a website that offers lists of upcoming mystery novel debuts and publishes a newsletter that is e-mailed twice a month. This website also includes links to British and Canadian Barnes & Noble websites and books divided into winners of various mystery novel awards.