Volume 13, Issue 2 Observing “tuned” advertising on digital platforms Nicholas Carah, University of QueenslandLauren Hayden, University of QueenslandMaria-Gemma Brown, University of QueenslandDaniel Angus, Queensland University of TechnologyAimee Brownbill, Foundation for Alcohol Research and EducationKiah Hawker, University of QueenslandXue Ying Tan, Queensland University of TechnologyAmy Dobson, Curtin UniversityBrady Robards, Monash University PUBLISHED ON: 26 Jun 2024 DOI: 10.14763/2024.2.1779 We develop an approach to observe the algorithmically-tuned nature of digital advertising by creating visualisations of ad sequences from a citizen scientist data-donation project. KEYWORDS: Digital platforms, Advertising, Observability, Algorithms, Harmful industries