If you are going to refer to or use content from other sites, authors, or entities, you must include a link or citation for it. You cannot copy and paste entire articles, stories, poems, or etc. from other sites or entities as that is copyright infringement, and contributes nothing to discussion. You should not need more than a few lines, sentences, or maybe a paragraph, to make your point in reference to the topic/discussion. From Copyright.gov
; “Under the fair use doctrine of the U.S. copyright statute, it is permissible to use limited portions of a work including quotes, for purposes such as commentary, criticism, news reporting, and scholarly reports.” Passing off others’ work as your own, whether unintentionally or purposefully, is copyright infringement, and the Literature Network abides by the Copyright Laws of the United States of America and of other countries where applicable.