A Forrester report released Tuesday estimates advertisers wasted $7.4 billion on poor-quality display ad placement in 2016. Forrester sees the latest advertising revolt as the beginning of the end of advertising as the industry knows it today.

At last week's MediaPost Search Insider Summit, a panel of search experts took the concept of the Halo Effect in-house to view it through the eyes of search marketers and C-level execs responsible for budgets.