Click Fraud Conversion Rate PR SEM 
WebMarketCentral
SEPTEMBER 14, 2007
MarketingSherpa recently published its Search Marketing Benchmark Guide for 2008 , providing data on cost per click (CPC), conversion rates, SEO and other key online marketing metrics. The return on PR spending is viewed as the most difficult to measure. Thinking of bringing SEM and SEO in-house?
WebMarketCentral
JANUARY 22, 2008
Search engine marketing (SEM) is one of the fastest-growing categories in all of advertising, because it is both measurable and logical: present your ads when people are searching for what you're selling. seems somewhat odd; you should NEVER outsource SEM without ongoing reporting and analysis as part of the service offering.
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