I have a YellowPages website let’s call ‘olddomain.com/yellowpages’ that is #1 in Google for most key phrases. I want to add a Social Network component BUT switch to ‘newdomain.com’ which is a much better domain name for the combined components. Ideally newdomain.com would be at root, and YellowPages would be at yellowpages.newdomain.com I’m not sure how to transition the existing YellowPages to newdomain.com with the best search results for both the existing YellowPages component and new Social component, yet ultimately have everyone either go to or think they are going to newdomain.com. Long-term Google search results are most important. I thought of 4 options (but I’m not very educated on this) 1) REDIRECT YELLOWPAGES.NEWDOAMIN.COM TO OLD SITE Keep olddomain.com/YellowPages content where it is and permanently redirect yellowpages.newdomain.com to olddomain.com/yellowpages. Advantages? a) Current YellowPages customers won’t have a problem getting to their saved links for account/pages, etc. Problems? a) Ideally I don’t want to keep hosting two accounts b) I really want to use new.domain.com for everything as it’s a much better name. c) I don’t want people to think of it as two separate sites with 2 domain names. d) How will Google look at this? Would it show the YellowPages content in searches as yellowpages.newdomain.com? Would it still rank YellowPages files as high? 2) TWO TOTALLY SEPARATE SITES WITH CROSS LINKS Have menu links on all newdomain.com pages that go to existing YellowPages and links on YellowPages pages that go to newdomain.com Advantages? a) Best for Google ranking? Problems? a) I don’t want to keep two sites if possible. I want people to think of both the Social and YellowPages as two components of the same domain/business. b) I love the newdomain.com name 3) MOVE THE YELLOWPAGES FILES TO NEWDOMAIN.COM I would move all olddomain.com/yellowpages files to yellowpages.newdomain.com. Advangages? a) All files would be in one hosting account. b) Everyone ultimately would see everything at newdomain.com and olddomain.com would be completely gone. Problems? a) Would I be able to redirect olddomain.com/yellowpages to pellowpages.newdomain.com – maybe by keeping hosting olddomain.com but having no files on it? b) Would Google rank the very established YellowPages pages lower? Especially since newdomain.com is a brand new registered name? c) Would it be hard to copy YellowPages files and mysql? I have cPanel. In both new and old hosted domains, the YellowPages is a subdirectory/subdomain that will keep the same name – just the root domain name is different. 4) PARK OLDDOAMIN.COM ONTO NEWDOMAIN.COM I could park the olddomain onto the newdomain. Advangages? a) Old YellowPages customers’ links would work as they would think they are on olddomain.com. b) New customers that find the social network would see newdomain.com c) I wouldn’t have to host 2 domains. Problems? a) Having to copy files from olddomain to newdomain b) How would Google handle the searches? Would it see both domain name url’s and rank them? Or just newdomain.com files? Would it eventually rank YellowPages files as part of newdomain.com but it would take a year or two to get ranked high? Thanks SO much in advance for any help you can be. Jim