eBay has a service called Cross-Promotion Connections that allows eBay merchants to connect with one another. When a bidder wins a bid, they get access to the seller’s other listings as well as the listings of their connections. eBay used to provide a free Cross-selling service that allowed merchants to advertise similar items. Sellers have the option of promoting similar goods or offering discounts for larger orders. This function has been disabled and is only available to a limited number of people at specific times.