I'm not sure if i fully understand the question. I think you should read articles about how SEO works. What do you mean by 'open pages'? Here is a good article on how SEO works:http://computer.howstuffworks.com/search-engine-optimization.htm?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+DailyStuff+%28DailyStuff+from+HowStuffWorks%29