Question: We were thinking of mirroring our website by giving affiliates subdomains with our content like xyz.oursite.com. Is this a good idea or a duplicate content nightmare?
Answer: Giving affiliates the same set of data is indeed a duplicate content nightmare, and it makes it hard for the affiliates to push their sites into the core organic parts of the web. If they have a product database and the same reviews and content that exist as the core branded site there is nothing remarkable about what they are doing. You can look back to this post on leaked human review documents to see how Google views affiliate sites.
Instead of cloning all your content and giving affiliates access to that, I recommend encouraging affiliates write personal journals on their own subdomain. I would encourage them to promote your products and blog about topics other than your products. This will allow some of [...]

Original post by Aaron Wall