Definitive books/resources on web application scalability?
What are the best, up-to-date, resources on web application scalability?

Any resource will do, books recommendations are preferred.

Alternative question - if you needed to recommend one book which covers web scalability, which would it be?
Definitive books/resources on web application scalability?
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What are the best, up-to-date, resources on web application scalability?

Any resource will do, books recommendations are preferred.

Alternative question - if you needed to recommend one book which covers web scalability, which would it be?