Douglas Karr's Articles on Martech Zone
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How to Write Effective Prospecting Emails in 2025: Clarity, Relevance, and Action
Writing an effective prospecting email is more complicated than ever. Every inbox is saturated with automated outreach, GenAI-written cold emails, and templated sequences that all sound the same. Prospects are overwhelmed, filters are smarter, and the patience for irrelevant or…
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Zero-Click Searches, AI Overviews, and Personalized SERPs: The End of Traffic Forecasting
For years, marketers and publishers could predict blog post readership with surprising accuracy. The formula was straightforward: keyword search volume multiplied by expected click-through rate (CTR) based on search engine ranking. If you ranked first for a high-volume keyword, traffic…
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Interspire: Self-Hosted PHP Email Marketing Software for Complete Control
Marketing teams today face a dilemma: subscription-based SaaS email tools keep getting more expensive, while compliance and data privacy concerns make it riskier to rely on third-party servers. For organizations that send high volumes of emails or require full control…
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How Usage Reports and Triggered Emails Drive SaaS Retention and Customer ROI
For most Software-as-a-Service (SaaS) platforms, the accurate measure of success is not sign-ups but sustained engagement. Customers who continue to use your product and increase their usage over time are the ones who drive profitability and brand advocacy... yet maintaining…
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The Role of Security Operations in Protecting MarTech Ecosystems
Modern marketing has become a technology-driven discipline. From CRM platforms to automation tools, analytics dashboards, and customer data platforms ( CDPs ), nearly every marketing function depends on digital ecosystems. This deep reliance on cloud-based and integrated systems has made…









