The document discusses the rise of ad blocking and strategies to address it. It notes that the need to monetize websites through advertising has led to unrestrained ad volume, interruptions, and data collection, driving users to install ad blockers. Early strategies to combat ad blocking like asking users nicely to disable blockers or taking a firm stance did not work. A better approach is to put ads back on sites for blocker users, but focus on showing less intrusive ad types that people are more willing to view, like static images, in order to avoid further rebellion against ads.