Which dictionary brand revolutionized the market in 2006 by introducing the first major print dictionary that included free lifetime access to its online version with purchase?

The dictionary market might seem like a quiet corner of the publishing world, but it has its share of innovation and disruption! This trivia poll explores how one company revolutionized dictionary retail marketing with a groundbreaking approach that changed how consumers interact with language resources. Test your knowledge of this significant shift in linguistic product marketing.

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Merriam-Webster's Collegiate Dictionary
Oxford American Dictionary
American Heritage Dictionary
Random House Webster's College Dictionary