Marketers Spent $4 Billion On Click-to-Call Advertising In 2014 — Report

Lack of keyword attribution creates a “blind spot” for search marketers. The post Marketers Spent $4 Billion On Click-to-Call Advertising In 2014 — Report appeared first on Search Engine Land.

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Marketers Spent $4 Billion On Click-to-Call Advertising In 2014 — Report

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