Which company first implemented a sophisticated product recommendation algorithm that significantly influenced modern e-commerce practices?

Test your knowledge about the evolution of product recommendation systems that have fundamentally changed how we shop online. These powerful algorithms analyze our browsing history, purchase patterns, and preferences to suggest products we might like - sometimes before we even know we want them! But when did this retail revolution begin, and which company pioneered the technology that would transform e-commerce forever?

This is a live public trivia poll on AIPolls.Net. Vote and see real-time results.

Amazon with its item-to-item collaborative filtering (1998)
eBay with its BiddingBuddy system (2001)
Netflix with its Cinematch algorithm (2000)
Alibaba with its Taobao recommendation engine (2003)