Which e-commerce platform was the first to implement a large-scale recommendation engine based on collaborative filtering technology?

In today's digital marketplace, e-commerce platforms have revolutionized how businesses connect with consumers. While many platforms compete for market share, some have pioneered innovations that fundamentally changed online retail. This trivia question tests your knowledge of e-commerce history and which platform first introduced a feature that has become standard across the industry. Understanding these milestones helps business professionals recognize potential game-changing innovations in the current landscape.

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Amazon
eBay
Alibaba
Shopify