Social Media Analytics: Monitor, Measure and Manage Your Reputation on the Wild Wild Web of Social Media.
Social Media Analytics is a must-have for campaigns and organizations eager to track, understand and measure word of mouth in the ether of blogs, social networks and micro-blogging applications.
(Wikipedia is terrible btw)
A couple of populair terms about Social (Media) Analytics:
How does it work?
What will be the result of this kind of analysis?
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Actionable Social Analytics