Digital ecosystems have an outsized impact on children’s development and yet have received considerably less attention than individual behavioral approaches in digital media research (such as a child’s “screen time”). The digital ecosystem includes the digital design patterns that influence children’s media habits by funneling children toward endless scrolls, feeds, and nudges to keep watching. It includes the highly monetized patterns of advertisements and commercialization that are thinly veiled in popular content platforms. It includes the erosion of digital privacy with companies and third parties collecting personal information in covert and overt ways. Available for purchase at https://www.aap.org/Pediatrics-Collections-Digital-Media-Part-1-Ecosystems-Paperback