What are alternative digital channels? What type of users can be found across those channels?

What are 5 (five) current industry tools and technologies used in digital media channels?  
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What are 3 (three) core deliverables for digital marketing?  
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How is industry performance measured?  
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What are alternative digital channels? What type of users can be found across those channels?  
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What are key aspects of nodes of integration across multiple digital environments?