Version User Scope of changes
May 8 2007, 10:09 AM EDT (current) KevinSugrue 24 words deleted
May 8 2007, 9:21 AM EDT KevinSugrue 35 words added

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The cost it takes for one advertisement to reach 1,000 people. This could be 100 people watching an ad 10 times, or 1,000 watching an ad once, or any combination (like non-unique user web hits).