Fast Company has published an article on the latest techniques used by political campaigns to target ads. Titled, “YES, POLITICAL CAMPAIGNS FOLLOW YOUR BROWSER HISTORY,” the writer unveils the secrets behind these highly targeted political advertisements with the help of Ted Dhanik, president and CEO of engage: BDR.

According to the article, political campaigns can microtarget the individual voter by “marrying internet browser histories to census records and aggregate marketing data purchased from voters.” Dhanik provides a few examples of how his digital advertising firm provided similar services for Mayor Eric Garcetti’s campaign.

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