Ok. Just did a search on Big G, and followed a link that gave me this message: " When possible, Google will customize your search results based on location and/or recent search activity. Additionally, when you're signed in to your Google Account, you may see even more relevant, useful results based on your web history. The following information was used to improve your search results for http://www.xxxxxxxxxxxxx.com: Web History One or more items in your Web History were used to improve search results. Manage Web History Remove Web History from my Google Account If you're curious, you can see what a search for http://www.xxxxxx.com looks like without these improvements. The 'More details' link on your search results page can be used to display this page for approximately 30 minutes, after which it will no longer show this page." So how does this affect SEO?