I don't even know if anybody has written a book specifically about search at "web scale" (no MongoDB jokes here, please). But about the closest things I know of

I don't even know if anybody has written a book specifically about search at "web scale" (no MongoDB jokes here, please). But about the closest things I know of would be something like: https://www.amazon.com/Managing-Gigabytes-Compressing-Multimedia-Information/dp/1558605703 https://www.amazon.com/Managing-Gigabytes-Compressing-Multim... https://www.amazon.com/Information-Retrieval-Implementing-Evaluating-Engines/dp/0262528878 https://www.amazon.com/Information-Retrieval-Implementing-Ev... https://www.amazon.com/Introduction-Information-Retrieval-Christopher-Manning/dp/0521865719 https://www.amazon.com/Introduction-Information-Retrieval-Ch...