eBay is a leading e-commerce platform that connects buyers and sellers from all around the world. It offers a diverse range of products and services, from electronics to fashion, home goods, and more. With millions of active users, eBay provides a global marketplace for businesses of all sizes to sell their products and reach a broader audience. eBay's platform includes features such as bidding, instant purchasing, and seller ratings, which help to ensure a safe and reliable buying experience. eBay is a trusted and established platform that continues to evolve and innovate, providing a comprehensive suite of tools and resources for businesses to succeed in the e-commerce world.

Pub/Sub allows services to communicate asynchronously, with latencies on the order of 100 milliseconds. Pub/Sub is used for streaming analytics and data integration pipelines to ingest and distribute data. It's equally effective as a messaging-oriented middleware for service integration or as a queue to parallelize tasks.