Amazon has one product: Their shop (yes they have some minor stuff, but when people talk about Amazon they talk about the shop, maybe Payments) Twitter has one

Amazon has one product: Their shop (yes they have some minor stuff, but when people talk about Amazon they talk about the shop, maybe Payments) Twitter has one product: The API that is taking the tweets and distributing it to the streams of users (yes the may have some other minor products or utility software) Linkein has one product: Their career/contact website (yes they may have some other products) When you cite those companies as using Rails for their products, I'd assume - and I have no data to support this - people have those products in mind.