Mass marketing via TV, radio, mail, and newspapers is no longer cost effective and is being replaced by focused selling to smaller identified groups of customers with special needs and demands. 

The practical historical philosophy that one commercial or ad fits all customers is quickly biting the dust and being replaced by customized selling approaches to much smaller audiences.

Here is a link to an article in inc.com which describes the revolutionary changes occurring.

http://www.inc.com/geoffrey-james/the-new-rules-for-marketing.html

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Enjoy!!!!!!