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.
You can also sign up to sell products on Amazon Marketplace for just $0.99 plus a referral fee and a variable closing fee, depending on the item. If Amazon ships the item they will charge the seller. Just make sure you read all the rules. For example, if you want to sell toys this holiday season, you have to sell at least one item by September, and show a pattern of processing and shipping two dozen items before November.
Throughout the store there are features like “Most-Wished-For,” a collection of products that are most added to Amazon.com Wish Lists; “Trending Around NYC,” hot products that NYC-area customers are buying on Amazon.com; “Frequently Bought Together”; and “Amazon Exclusives.” These features, along with customer review cards with quotes from actual customer reviews, make it fun and easy to shop.