In order to be considered "original" from the search engine perspective, it needs to be around 30% new content. There are websites like http://www.copyscape.com

In order to be considered "original" from the search engine perspective, it needs to be around 30% new content. There are websites like http://www.copyscape.com/ http://www.copyscape.com/ that can tell you how original something appears. Internet marketers use software to "spin" text and make it appear unique. Sometimes the text is annoying for humans to read, but search engines eat it up. You can take one article and turn it into 50 with the click of a couple of buttons.