Hi, Could the ranking in natural search be negatively impacted if the website is getting bigger and bigger, (number of pages rising), and if the quantity of bots' crawled pages stays stable (which necessary means a decreasing crawl rate) Actually, we have a website with several millions of pages, which ranking is decreasing since April 2007. the number of crawled pages stays stable (we didn't use the "faster" option that is offered with Google Webmaster Tools). Could the crawl rate decrease be the reason of the decrease of our natural search ranking - for example because of changes in internal linking structure (loss of links integrated in our deep pages (ie product page)) or for any other reason? We've created a lot of new categories of products (and still create new ones). Can these creations lead to a decrease in the crawling of our deepest pages (such as product ones). These pages were part of our good ranking. It would mean that it can be a vicious circle: the more we integrate products, the more we lose ranking? Thank you in advance