This Ad is Watching You

Yahoo announced a new tool for creating targeted ads on the web:

“The product, Yahoo SmartAds, would help marketers create custom advertisements on the fly, using information on individual buyers and information on real prices and availability from the vendors. For example, a person who had recently searched for information about blenders might see an ad from Target that gives the prices for the blenders that are on the shelves in the store closest to that person’s home.”