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Diversity of traffic sources

Google may be the 8000 pound gorilla of website marketing, and Google search results may be 80% of your traffic, and if you run Adsense advertising they may be paying most of your income, and if all that is true it makes you very dependent on Google's whims. That's the message of: Why You Should Forget About Google And Start To Diversify Your Traffic Sources Only by diversifying ones traffic sources will one be immune to whimsical changes in Google policies.