Cash and Revenues are two totally different things on financial statements, like the ones pictured in the article. jamesredman is completely right that the article is incorrectly titled. Cash cow refers to something that generates free cash flow and this article misinterprets that to mean revenues, which actually have costs associated with them and don't represent cash flows.

That would be a distinction. Wasn't entirely clear to me in jamesredman's post.

Thanks.