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Good question Nicholas, What we have done in the past and (I believe is a best practice) is to 301 url to url wherever possible. I would not do a splash page, on your pages if you added something in the header of SuperWidgets: Welcome GreatWidgets members, two great companies have now become one greater company, etc. The 301 gets you the juice infusion, GW customers are not freaking out is great too. On the local, it really will be around what other assets. Brick and mortar, staying open or closing, etc. You won't be able to use a 301'd url in Places, but the others will still resolve. As to unclaimed, I would claim and then use that for as long as it is good. Best,

I agree with Alan 100%.  There are some great options you can do with IIS rewrites.

Hi Nicholas, Unfortunately not. The sitemap reference has to be absolute. (You can confirm this by using the crawler access tool within WMT's) I'd suggest that you create a PHP script to create a robots.txt file with the correct domain rather than having to do it manually. Good luck!

They change dynamically as new products are added or removed. Content is framed in from a subdomain on the client's site that syncs with All You Retail's (the third party supplier) inventory stuff. Content lives in the subdomain, images are hotlinked from a variety of different places (suppliers, AYRs system, supplier info stream). As for how exactly the inventory works, I'm not 100% sure yet. The site I'm referring to is here: http://durochersonline.com You can see what I mean. I know there are a slew of other SEO problems to be fixed, but this is the one I've never dealt with before. I don't start on the project for a few weeks, just want to make sure I know what I'm in for here.