Ad blocking has become a problem that threatens the online ad industry (~$60B). @globalwebindex found that 34% of US internet users ages 16 to 24 and 31% of those ages 25 to 35-years-old block ads - this is significantly less common among older internet users. @risj_oxford discovered that 41% of US internet users use ad blockers on their desktop or laptop PCs. However, millennials do not reject all ads as irrelevant. @fractlagency reported that the majority of millennial internet users polled rated free content, discounts, free trial offers by mail, and appearing high in search results as the most effective ways to reach them.  - Link