Advertising Media and Web Metrics
9 ADVERTISING MEDIA AND WEB METRICS Introduction Metrics covered in this chapter: Advertising: Impressions, Effective Reach and Effective Frequency Gross Rating Points, and Share of Voice Opportunities-to-See Impressions, Pageviews, and Hits Cost per Thousand Impressions (CPM) Rates Clickthrough Rates Reach/Net Reach and Cost per Impression, Cost per Click, Frequency and Cost of Acquisition Frequency Response Functions Visits, Visitors, and Abandonment Advertising is the cornerstone of many marketing strategies. The positioning and com- munications conveyed by advertising often set the tone and timing for many other sales and promotion efforts. Advertising is not only the defining element of the marketing mix, but it is also expensive and notoriously difficult to evaluate. This is because it is not easy to track the incremental sales associated with advertising decisions. For many mar- keters, media metrics are particularly confusing. A command of the vocabulary involved in this field is needed to work with media planners, buyers, and agencies. A strong understanding of media metrics can help marketers ensure that advertising budgets are spent efficiently and directed toward a specific aim. In the first part of this chapter, we discuss media metrics that reveal how many people may be exposed to an advertising campaign, how often those people have an 263 opportunity to see the ads, and the cost of each potential impression. Toward that end, we introduce the vocabulary of advertising metrics, including such terms as impres- sions, exposures, OTS, rating points, GRPs, net reach, effective frequency, and CPMs. In the second part of this chapter, we focus on metrics used in Web-based marketing efforts.
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