A new ad-blocking technology could mean trouble for online publishers. Developed by researchers at Stanford and Princeton, this ‘undefeatable’ ad blocker breaks from the norm and detects ads much like humans do: by looking at it. Typical ad-blockers scan a page’s source code looking for signs of ads. It’s effective in most instances, but the technology isn’t perfect and can be circumvented to show ads — or “please consider whitelisting this site” pop-ups. The new tool, Perceptual Ad Blocker, finds ads the way humans do: by looking. Instead of reading HTML markup or tags, the system looks instead at the content contained…
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