Which groundbreaking feature, first widely implemented by Amazon in 1998, revolutionized e-commerce by allowing platforms to suggest products based on previous purchases and browsing history?

The landscape of online shopping has been shaped by revolutionary platforms that forever changed how we buy and sell. These technological breakthroughs transformed simple digital catalogs into the sophisticated marketplaces we use today. Test your knowledge about the pivotal innovations that defined modern e-commerce platforms and set the foundation for today's digital retail environment.

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Collaborative filtering recommendation system
One-click purchasing patent
User-generated product reviews
Secure socket layer (SSL) encryption for payments