Really interesting research: “Online tracking: A 1-million-site measurement and analysis,” by Steven Englehardt and Arvind Narayanan:
“Web privacy measurement — observing websites and services to detect, characterize and quantify privacy-impacting behaviors — has repeatedly forced companies to improve their privacy practices due to public pressure, press coverage, and regulatory action.
On the other hand, web privacy measurement presents formidable engineering and methodological challenges. In the absence of a generic tool, it has been largely confined to a niche community of researchers.”
