The best way to receive all the news from O'Reilly, including book releases, is to sign up for the monthly oreilly.com newsletter. You can do that at elists.oreilly.com. It's the first option in the upper right corner of the page.
Thanks for your interest in O'Reilly books!
Sorry about our delay in getting back to you. Unfortunately currently there is not a way to be notified about one specific title. Thanks again for your interest in O'Reilly books and have a great day!
Customer Service Representative