Section 512 of the Digital Millennium Copyright Act established both "safe harbors" from liability for online service providers and the well-known "notice and takedown" process for removing online infringements of copyrighted material. In the ensuing two decades, the notice and takedown process...

Most people may believe that online activities are tracked more pervasively now than they were in the past. In 2011, we started surveying the online mechanisms used to track people online (e.g., HTTP cookies, Flash cookies and HTML5 storage). We called this our Web Privacy Census. We repeated...