Claritas and NetRatings Announce Partnership 2/6/00 Claritas, Inc and Nielsen//NetRatings have formed a partnership to help clients improve the planning of their overall strategic marketing programs, bridging traditional offline marketing activities with the Internet to better target Web consumers. This approach will combine Nielsen//NetRatings' Internet audience measurement information with Claritas' marketing segmentation systems, Prizm and MicroVision, for marketers in the financial, telecoms, retail and energy sectors. Under the agreement, Nielsen//NetRatings and Claritas will offer customers lifestyle segmentation information. Using Nielsen//NetRatings' data, Claritas will analyse each site's audience according to their Prizm or MicroVision target market segments. Prizm and MicroVison are used to target consumers, identify markets and locations, and evaluate media and promotional opportunities. With the data, marketers will be able to identify the Internet sites visited by those in their target segments. Combining the Claritas data with the Nielsen//NetRatings data will make it possible to assess online and offline media using common criteria. Marketers will be able to assign target values to particular Internet destinations and will use Internet data as part of their market research and brand loyalty assessments. The new information will expose changes in behaviour, loyalty, and response to content, to guide product targeting, promotional messaging and media buying.