This is largely how "guest blogging" works too. Marketing agencies hire writers who create content for their clients. The agencies then give the content to publ

This is largely how "guest blogging" works too. Marketing agencies hire writers who create content for their clients. The agencies then give the content to publishers for free, and it's published under a pseudonymous byline or the byline of an executive that typically includes a link to the client. When you see an article in Forbes written by a CEO or some other executive, it's often ghost written by a marketing agency's writers.