Duplicate Content & Information
Duplicate content is surprisingly common on websites. Unfortunately, this dilutes your search engine ranking for important pages and, when excessive, may signal to search engines that you are spamming for phrases and key words. The two areas where this occurs most are in content phrasing and with title tags. Title tags are easy to deal with. Sign in to your Google Webmaster tools and go to HTML improvements. There is a ‘Duplicate Title Tags” section that will tell you about duplicate content.
Finding identical or very similar phrasing can be more difficult. If there is a phrase that you fear is used too often throughout the website, simply search the site for it in quotation marks. This will give you results for that exact phrase. Slightly changing the wording should solve the problem.