He / Him
I love the idea that we all assume it's a four-dimensional-chess-playing algorithm figuring out the ads, but in reality it's just one over-worked dude in a basement cubicle sweating constantly and making bad calls.Some years ago I bought a shower head on Amazon. For weeks I got recommendations for shower heads. Because apparently they thought I was a collector or connoisseur or something, instead of someone who needed a new shower head in a hurry.
"Um... Shower heads! Give 'em more shower heads!"