What’s the cost of buying users from Facebook and the other ad networks?

Julian Shapiro Contributor Share on Twitter Julian Shapiro is the founder of BellCurve.com, a growth marketing agency that trains you

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China’s Alipay digital wallet is entering 7,000 Walgreens stores

China’s payments heavyweights have been following tourists abroad as their home market gets crowded. Ant Financial, Alibaba’s financial affiliate with a

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