Content Writing is creating content for the Web. Articles, blog posts, website content, social media content, e-books are some of the tasks that come to mind when referring to Content Writing. Not to be confused with Copywriting, which is writing for promotional advertising or marketing.
A Content Writer, as well as a Technical Writer, needs to be skilled in writing for a target audience. Sometimes they need to be Subject Matter Experts (SME's). A construction contractor for example might require their Content Writers to have an engineering degree.
SEARCH ENGINE OPTIMIZATION (SEO)
Or the art of ever changing Google algorithms, AdWords and search engine behavior... It is a good skill for a Content Writer to have a basic understanding of Search Engine Optimization (SEO). A well written article based on a set of keywords that reflect the audience's wants and needs will get your website at the top of that search list!