Hi Amy, Jeff Hinds wrote: > You should set a 301 server redirect on the less important Domain to > redirect it to the domain that is important. > > Jeff Agreed -- here's some reasons why: Duplicate content http://www.google.com/support/webmasters/bin/answer.py?answer=66359 Official Google Webmaster Blog: Deftly dealing with duplicate content http://googlewebmastercentral.blogspot.com/2006/12/deftly-dealing-with-duplicate-content.html Official Google Webmaster Central Blog: Demystifying the "duplicate content penalty" http://googlewebmastercentral.blogspot.com/2008/09/demystifying-duplicate-content-penalty.html hth, -dave > On Tue, Mar 2, 2010 at 1:09 PM, Amy Johnson<amy at rocky-hills.com> wrote: > >> I have a client whose ecommerce site experiences dramatic ups and downs in >> his Google ranking and we can't really figure out why. He has two domain >> names for the site and he thinks that his hosting company (which is very >> small) is wrong in using a "true park" for his two domain names and that is >> the problem. Can anyone shed some light on the best way to have two domain >> names pointing to one site for SEO? >> >> Thanks! >> Amy