It’s looking like some of the more advanced search engines, such as MSN, are giving greater preference to sites with “clean” back-end Web code. If you are not a Web developer this might not make a lot of sense but HTML and other scripting/markup languages can be written a bunch of different ways to give the same visual appearance on the viewable page itself. Unfortunately, many WYSIWYG editors (what you see is what you get) add a bunch of unnecessary and often messy code to the back-end of your Web pages. Aside from often placing the important META tags in a less than optimal place, these editors sometimes add extra tags and do not follow the W3C (Worldwide Web Consortium) standards, such as HTML formatting guidelines.