Douglas Karr's Articles on Martech Zone
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Calculate or Query Great Circle Distance Between Points of Latitude and Longitude Using The Haversine Formula (PHP, JavaScript, Java, Python, MySQL, MSSQL Examples)
This month, I’ve been programming in PHP and MySQL for GIS . While researching the topic, I had difficulty finding geographic calculations to find the distance between two locations, so I wanted to share them here. The simple way of…
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SurveySparrow: Your All-In-One Omnichannel Experience Management Platform
There's definitely a trend among consumers and businesses alike to protect their data and privacy more than they ever had in the past. A few years ago, I made the mistake of sharing my mobile phone with a company and…
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Grow: Empower Your Marketing Team With No-Code Business Intelligence
Making data-driven decisions shouldn’t be the privilege of analysts or IT teams—it should be the superpower of every employee. Companies are often hindered by fragmented tools, inaccessible data, and slow, technical bottlenecks that hinder insights when they’re most needed. Grow…
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Pantheon: How to Deploy WordPress on this Managed WordPress DevOps Platform
Pantheon stands apart in the managed WordPress hosting landscape by positioning itself not just as a web host but as a full-scale WebOps platform built for agile teams. While most managed WordPress providers focus on performance optimizations, automated backups, and…
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Effective Ways to Publish an Android App on Google Play Store
Distributing an Android app through the Google Play Store is the most common and effective method to reach a global user base. With more than a billion active Android users worldwide, publishing on Google Play offers extensive visibility, discoverability, and…
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Airgram: Improve Your Meeting Productivity By Automating Your Marketing and Client Meeting Notes
With Elon Musk's purchase of Twitter, he's been forced to take some drastic actions to cut costs, increase employee productivity, and protect the future of the platform. It should come as no surprise that a leaked internal memo from Musk…
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Promo: An Online Video Editor With Over 3,000 Customizable And Engaging Templates for Social Media Videos and Ads
Whether you're publishing audio or video, you know that sometimes that content is actually the easy part. Add editing, resizing, and optimization for each platform and you're now spending more time on production than you are on the recording. This…
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10 Steps To Negotiating a Pay Raise… Even in a Tight Job Market
Marketing roles—and many white-collar jobs—are experiencing slowdowns in hiring and even reductions in force. While the demand for roles may be declining, your value as a professional doesn’t have to. In fact, during periods of uncertainty or constraint, companies are…
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5 Social Networking Steps for Sales Professionals
Met with a client today who understood the basics of Twitter, Facebook, LinkedIn, etc., and I wanted to provide them some feedback on beginning to utilize social media effectively. The client was a sales professional and wanted to begin taking…
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Marketing Takeaways for the Convergence of Television and Internet
The convergence of television and the internet represents one of the most significant shifts in media consumption behavior and content distribution strategies in recent years. The television industry is undergoing a radical evolution, with a surge in new technologies and…