First time poster here. I am working on an e-commerce site that currently sells around 5,000 different products, each with its own product page. The site is around PR3, a fairly young site, been growing steadily in traffic and search engine rankings for the past two years. No issues with Panda update or any other updates this year.
We are taking on a new distributor that has over 200,000 products in their catalog. This is going to require not only new categorization/navigation to handle them all, but is going to be a serious amount of pages to ask Google to index from a fairly low PR site. Obviously we're not going to be writing unique product descriptions for 200,000 products, so there will be quite a lot of duplicate content. We're also going to be changing our user interface. We will be preserving most of our current categories and urls.
Wondering if anyone out there has experience with this type of massive increase in pages, and how Google might react to the change. Any thoughts about the best way to approach it? Would it help if we stagger the new page additions over a month, or would it not make much difference? Any feedback is appreciated. Thanks!