si-blog: Amazon and Alexa integration described by Jessey. Things do get more interesting when you join them together.
It only appears to be on amazon.com, where personally I haven't bought anything (and it still thinks I my be interested in The Da Vinci Code).
But still, I was impressed by the amazon.co.uk recommendations - for Books it suggested Purely Functional Data Structures. That's rather spooky considering I was reading some notes on the Haskell Prelude with my Cioko Rice this morning, with a view to trying some graph modelling.
PS. "Purely Functional Data Structures" was also the title of the author's thesis (PDF)