Perhaps "Web Scalability for Startup Engineers"
by Artur Ejsmont. But I admit I have't read it yet -- I however felt the same as you and started exploring for more resources after coming across this thread.
Designing for Scalability with Erlang/OTP book is good resource. I mix Erlang with Algorithmia pay-per-use algorithms these days to drop in features like sales analysis.
A modern version of Cal Henderson's "Building Scalable Web Sites" would be nice to have. I'm sure a lot of it still applies, but it was written a decade ago: http://shop.oreilly.com/product/9780596102357.do
Not really, but I don't know this space as well as I do the space covered by DDIA. It could well be that no one has written such a book, and perhaps the market is ready for one.