Copywriting and content marketing aren’t synonymous with one another, but they’re often used in the same context, which makes the terms highly confusing.
Content marketing refers to writing content with a marketing purpose. It is commonly used in blogs, articles, videos and white papers.
Copywriting, on the other hand, is written to the reader to make them take action. Whether it’s buying a product, following a company’s social media profile or visiting the store, the purpose is to generate action. Copywriting is used for landing pages, direct mail campaigns, sales pages, and infomercials.
Traditionally content marketing and copywriting were two different tasks, that was until Internet marketers got savvy and realized the two should be part of the same group. Today content marketing and copywriting should be done together.
Via Brian Yanish - MarketingHits.com