An affiliate network is a platform that connects businesses, known as merchants, with individuals or companies, called affiliates, who promote their products or services. Affiliates earn a commission for each sale or action generated through their marketing efforts. This arrangement allows merchants to expand their reach without upfront advertising costs. These networks provide tools and resources for both merchants and affiliates, such as tracking software and payment processing. Popular examples of affiliate networks include Amazon Associates and CJ Affiliate. By facilitating these partnerships, affiliate networks help businesses grow while offering affiliates opportunities to earn income through their promotional activities.