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<http://webisa.webdatacommons.org/250338872>	<http://www.w3.org/ns/prov#value>	"At the 12th Annual Haas Business Forecast Luncheon on June 8, UC Berkeley information economist Hal Varian will show how ??? today -- on-line advertising, personal video recorders, and other new technologies are making it easier to measure advertising response quickly and easily, leading to more relevant, higher-quality, and more effective marketing." .