Digital goods like music, e-books, online courses, and stock photos can also be produced by individuals and sold on a variety of online marketplaces. These digital goods can be produced & resold reprummy joueatedly without requiring constant work, offering a passive income stream. By promoting goods or services provided by other businesses, people can profit from affiliate marketing programs. People can earn passive income when their referrals make purchases by signing up for affiliate programs and sharing special referral links on their websites, social media accounts, or through other channels.