- ["visitor value" - Google Search](https://www.google.com/search?q=%22visitor+value%22&oq=%22visitor+value%22) - [Visitor Value: Understanding Exactly What Your Clicks Are Worth - SpeedPPC](https://speedppc.com/visitor-value-understanding-exactly-what-your-clicks-are-worth/) - [5 Classic Concepts to Increase Website Visitor Value - Named Visitors](https://www.arke.com/2014/01/5-classic-concepts-increase-value-website-visits-named-visitors/)
