Following up on the posting on Eric Chandler's DDL announcement, the Associated Press ran a profile today of Verizon's dynamically routed print ads.  According to the article,  Analyst Charles Laughlin of The Kelsey Group, a research firm specializing in the directory business, said Verizon's approach is unique. He considers it a reflection of the Internet, where advertisers can track the performance of ads by the amount of traffic they create.

"Advertisers are being trained to use performance-based advertising by the Internet," Laughlin said.