Why do i see my site ranked differently in different parts of the USA for a given keyword? I am using a proxy service to change IP's to test what it looks like in different areas and it is coming up differently in different areas. The keyword is "mustangs for sale" and the site is http://www.mustangtraderonline.com. Here is Boise, it comes up #29 and in other areas as high as #5. Now with the lastest google updates, it has kind of been all over the place this last week and way down from the #1 ranking we've held for 6 years now.
Different results for different data centers. With the recent updates, there's been even more fluctuation.