Amazon (company)
Amazon owns over 40 smaller companies, including Twitch, Zappos, Shopbop, Diapers.com, Kiva Systems (now Amazon Robotics), Audible, Goodreads, Teachstreet and IMDb. Amazon.com is primarily a retail site with a sales revenue model; Amazon takes a small percentage of the sale price of each item that is sold through its website while also allowing companies to advertise their products by paying to be listed as featured products.