Search Engine Journal

Yahoo, ACNielsen measure retail sales | CNET News.com: “Yahoo on Monday introduced a specialty research service that allows retailers to track offline sales spurred by online ad campaigns, the Web portal’s latest invention to woo advertisers.
The Sunnyvale, Calif.-based Net giant partnered with ACNielsen, one of the United States’ biggest media measurement companies, to introduce Consumer Direct, a market research tool. The service taps a panel of Yahoo Web surfers to divulge how effectively online advertising from companies such as Kraft Foods and Unilever drives people to buy in stores.”