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I'm Drew Breunig and I obsess about technology, media, language, and culture. I live in New York, studied anthropology, and work in advertising technology.

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Freemium business model case study: AdultFriendFinder ARPU, churn, and conversion rates 

Andrew Chen breaks down the freemium business model with documents from Adult Friend Finder. This is a really great introduction to funnels, churn, and other basic analytic principles.