In 2015, Amazon surpassed Walmart as the most valuable retailer in the United States by market capitalization. Amazon is the third most valuable public company in the United States (behind Apple and Microsoft), the largest Internet company by revenue in the world, and after Walmart, the second largest employer in the United States. In 2017, Amazon acquired Whole Foods Market for $13.4 billion, which vastly increased Amazon's presence as a brick-and-mortar retailer. The acquisition was interpreted by some as a direct attempt to challenge Walmart's traditional retail stores.
The domain amazon.com attracted at least 615 million visitors annually by 2008. Amazon attracts over 130 million customers to its US website per month by the start of 2016. The company has also invested heavily on a massive amount of server capacity for its website, especially to handle the excessive traffic during the December Christmas holiday season.
Many items on Amazon come from third-party sellers on the Marketplace, indicated by a "Sold by" line near the "Add to Cart" button. If both Amazon and third-party sellers offer the item, the large "Add to Cart" button buys from Amazon, and you'll see a few alternative "Add to Cart" buttons with different prices and a link to a full list of used and new versions of the product. Marketplace sellers set their own prices, so you might find a great discount on a used item, or come across a rare, discontinued product that's only for sale at a collector's price. Even when buying from another seller, Amazon itself handles your payment, so you don't need to worry about your credit card information leaking out.
Twitch is a live streaming platform for video, primarily oriented towards video gaming content. The service was first established as a spin-off of a general-interest streaming service known as Justin.tv. Its prominence was eclipsed by that of Twitch, and Justin.tv was eventually shut down by its parent company in August 2014 in order to focus exclusively on Twitch. Later that month, Twitch was acquired by Amazon for $970 million. Through Twitch, Amazon also owns Curse, Inc., an operator of video gaming communities and a provider of VoIP services for gaming. Since the acquisition, Twitch began to sell games directly through the platform, and began offering special features for Amazon Prime subscribers.
World-famous action movie and television star Chuck Norris has stood behind the Total Gym exercise machine for more than 30 years. The Total Gym provides a complete exercise experience in one simple product. Because the product is able to fold out to become different machines, this gym allows a person to stay in peak physical condition without wasting a lot of money. Norris himself is world famous for his physique and has used the Total Gym for decades to maintain that condition.