I was invited by Nanna Bonde Thylstrup, Daniela Agostinho, Annie Ring, Catherine D’Ignazio & Kristin Veel to contribute a chapter to the Uncertain Archives: Critical Keywords for Big Data book published by MIT Press. The full title of the chapter is Obfuscation is neither good nor bad; nor is it neutral it discusses the politics of Obfuscation through the Adnauseam.io ad blocker I developed with Daniel Howe, Helen Nissenbaum and other examples.