Over one-fifth of people use ad-blocking software—and it’s beginning to hurt - Quartz
A recent report (pdf) from PageFair, a service that websites can use to measure the extent of ad-blocking, sheds some light on just how afflicted those sites are. Based on data from 220 clients, PageFair found an average ad-blocking rate of 22.7%. It estimates that one of its “typical” clients, with a 25% block rate, loses about $500,000 a year due to ad blockers. Based on data from a small sample of clients, PageFair says ad blocking is growing at 43% every year.