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I need to expand our service offering to another city and focus our SEO efforts to that new location. Would it be best to purchase a new domain name and make a new website very similar to the existing website so we can better target the search engines?  Same look and feel as the existing website. Or would it be better to create a landing page for the new location on the existing website to help stengthen the current domain name?  If so, how do i focus the SERPs to the new location when the existing website is so focused around my current location?