301 redirects. Follow jacquesm's link to Google's recommendation. Here is my how-to guide on implementing what Google recommends: http://www.joshklein.net/seo-

301 redirects. Follow jacquesm's link to Google's recommendation. Here is my how-to guide on implementing what Google recommends: http://www.joshklein.net/seo-basics-how-to-safely-move-redesign-your-website http://www.joshklein.net/seo-basics-how-to-safely-move-redes...