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I work on a website that have listings across the country. Is it possible for us to geotarget the home page of the website to cater to the person based on location so we can show the geogargeting links, articles, videos on the home page and direct the user in the right direction. Forrent seem to be doing it: http://www.forrent.com/ Will this have any negative SEO impact or we can lose rankings ?

Hello I have a smartphone site (e.g.m.abc.com). To my understanding we do not need a mobile sitemap as its not a traditional mobile site. Shall I add those mobile site links in my regular www XML sitemap or not bother to add the links as we already have rel = canonical (on m.abc.com ) and rel= alternate in place (on www site) to respective pages. Please suggests a solution. I really look forward to an answer as I haven't found the "official" answer to this question anywhere.