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Hi, There was just a great post on Google Webmaster Central about this very topic - http://googlewebmastercentral.blogspot.com/2012/04/how-to-move-your-content-to-new.html Register both domains with webmaster tools, make sure the new domain is crawlable by googlebot, 301 redirect the old pages/site to the new pages/site, and in webmaster tools of the old domain, use the change of address option under site configuration to tell Google that your site has changed domains and is now on the new domain. Make sure to check out Google's post, as they give some good tips and walk you through the process. Good luck!