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Sure, the fans of social media are legion. Of course, brand-based websites exist for good reasons. And there's no question that snail mail has its advantages. But when you ask consumers how they want companies to contact them, the method that they prefer is email. In a poll conducted in 2015 by MarketingSherpa, over 2,000 consumers gave their preference:

(Source: MarketingSherpa) Three out of five consumers prefer to hear from companies via email. That's for companies who a...