1. Dropshipping - it is the method of shipping products straight to your customers coming from a third- party distributor or supplier, without having an intermediary step ( like storing the products at your physical business location.
2. Wholesale- Means that the business buys goods in large quantities directly from manufacturers or distributors, warehouses them, and resells them to other businesses. Wholesale supply means that customers can purchase products at a good price.
3. Private label- Product is manufactured by a contract or third-party manufacturer and sold under a retailer's brand name.
Private label is a brand sold exclusively in one retailer, for example, Equate (Walmart). White label is a generic product, which is sole to multiple retailers like generic ibuprofen (Advil).
4. Online Arbitrage- Product re-selling. Buy products from one online marketplace at a cheap price and sell themk online on another marketplace at a high profit.