Douglas Karr's Articles on Martech Zone
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The 2025 State of Internet-Based Taxation in the United States… is Ridiculous
If you sell anything online in the US, you are operating inside a tax system that was never designed for frictionless, borderless commerce. The result is a compliance landscape that is both mature (nearly every state has caught up to…
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Marketing Automation Sequences that Drive Customer Retention and Expansion
Building an effective marketing automation program is no longer about sending more messages. It is about delivering the right message at the right moment, through the right channel, based on real customer behavior and lifecycle signals. Whether you sell a…
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BetterUp: Scale Your Revenue with Human + AI Sales Coaching
Sales teams operate in an environment defined by constant pressure. Quotas rise, deal cycles lengthen, and sellers are expected to master complex products while navigating increasingly sophisticated buyers. Traditional sales training, delivered as one-time workshops or static playbooks, often fails…
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Product Adoption: The Missing Link Between Acquisition and Revenue Growth
Most sales and marketing teams obsess over acquisition. Traffic, signups, demo requests, pipeline. But there’s a quieter metric that determines whether all that effort actually turns into revenue: product adoption. Product adoption is what turns initial interest into long-term value. When…
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Best Shipping Companies for Amazon Sellers
Efficient and reliable shipping is essential for running a successful eCommerce business. For online sellers, especially those using platforms like Amazon, choosing the right logistics provider can significantly impact delivery times, costs, and customer satisfaction. Below are some of the top shipping…




