There is a fine line between search engine optimised text and keyword stuffed or duplicate text. An example of this could be a page where a web designer would like to be found in all his local geographical areas when a potential customer searches for his service. This could easily be achieved by creating one page and repeating his keyword along with a geographical area or postcode for example:
Web designers in Surrey – Web designers in Kingston Web Design in Surrey and so on.
Unfortunately you would end up with a page with your keyword repeated 30 or more times and this is unacceptable. Avoid repeating wording or text across one page or multiple pages on your website. Plagiarism or copying text and information from other websites will not benefit your website. When search engines come across duplicate content on the Internet the decision will be made as to who is the original source of the article. Once the choice has been made the other web pages will not be assigned any credit or page rank. Other content which could be considered as duplicate content is creating multiple web pages based upon one web page of text, by simply changing just a few keywords in each of the pages, therefore you will end up with multiple pages with only slight changes in the content and this can be flagged as duplicate content.