Local listing is one of the most important local search naking factors for searh engine. It is also referred to as local SEO. You can update regularly and maintain this list.
http://www.2findlocal.com
http://www.brownbook.net
https://about.me
http://www.bizcommunity.com
https://www.hotfrog.com
https://foursquare.com
http://www.communitywalk.com
https://www.cylex.in
https://www.google.com/business
http://www.lacartes.com
http://www.mysheriff.net
https://www.salespider.com
http://www.showmelocal.com
http://tupalo.com
http://www.insiderpages.com
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