Dropshipping is a retail fulfillment method where a store doesn't keep the products it sells in stock. Instead, when a store sells a product, it purchases the item from a third party and has it shipped directly to the customer. The store owner doesn't handle any inventory and can focus on marketing and customer service. This can be a profitable way of making money, as it eliminates the costs of holding and managing physical inventory. However, the low barrier to entry means that competition can be intense, and finding a profitable niche and reliable suppliers can be a challenge.