Amazon on Monday launched Amazon Storefronts , which employs videos and “stories” to help customers to shop from nearly 20,000 small and medium-sized businesses that sell exclusively on its site. Smaller sellers account for half of its retail sales, Amazon noted in a press release emailed to Retail Dive . Amazon also unveiled a national TV ad featuring a small business that sells on Amazon — the Chelsea, Michigan, based Little Flower Soap Co. Amazon Storefronts, which includes U.S.-based sellers in all 50 states, features more than 25 product categories, including back to school, Halloween, home, pet supplies, kitchen and books, and a curated collection of over one million products, according to the release.