Copy editing (also written as copy-editing or copyediting, and sometimes abbreviated to ce) is the work that an editor does to improve the formatting, style, and accuracy of text. Unlike general editing, copy editing might not involve changing the substance of the text. wikipedia.org

A newsletter is a regularly distributed publication generally about one main topic that is of interest to its subscribers.

"Journalism is the activity or product of journalists or others engaged in the preparation of written, visual or audio material intended for dissemination through public media with reference to factual, ongoing events of public concern."

An article is a written work published in a print or electronic medium. It may be for the purpose of propagating the news, research results, academic analysis or debate. wikipedia.org

SEO content is any content created with the goal of attracting search engine traffic. wikipedia.org

Technical writing, a form of technical communication, is a style of writing used in fields as diverse as computer hardware and software, engineering, chemistry, the aerospace industry, robotics, finance, consumer electronics, and biotechnology. wikipedia.org

Writing is a medium of communication that represents language through the inscription of signs and symbols. wikipedia.org