Tracking Excavator: Uncovering Tracking in the Web's Past https://trackingexcavator.cs.washington.edu/index.html https://trackingexcavator.cs.washington.edu/InternetJonesAndTheRaidersOfTheLostTrackers.pdf (PDF) Tracing Information Flows Between Ad Exchanges Using Retargeted Ads https://www.usenix.org/conference/usenixsecurity16/technical-sessions/presentation/bashir https://www.usenix.org/system/files/conference/usenixsecurity16/sec16_paper_bashir.pdf (PDF) https://www.usenix.org/sites/default/files/conference/protected-files/security16_slides_bashir.pdf (slides)