Whenever we post things on a website the search engines index the page based on the address of that content. What happens if you move it? People will no longer be able to access it using your old link and the search engines will start fresh with the new page once (if?) they find it. This video shows you how you can use the Quick Page/Post Redirect to prevent losing referring traffic when you rename a permalink in WordPress. This plugin also has a number of great other uses, in fact I demonstrate how it was used to redirect old links from my Joomla based website to a WordPress based revision of the site as well. Don’t lose your SEO juice when you make changes, let your content be found.