In early October, the people who make ad blocking tools convened in Amsterdam for their industry’s annual conference. One session was a welcome pitch from Google product leaders about tweaks made to address fears that a security update to the company’s Chrome browser could hamper ad zapping. Google, which draws nearly 80 percent of its revenue from ads, even cosponsored the event, at an airy venue along the water.
All the while, another team at Google quietly prepared to unleash the most sweeping crackdown on ad blockers since Facebook took them on
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