I would be grateful for some advice on how to implement a change to the content of my sites.
Here the scenario:
I have 2 websites that are in my name and on the same server. One of them supplies more general information, the other one is a commercial site.
Both are related to the same niche (area) and have been doing very well in the serps for a few years now. There are only 2 links going from the general to the commercial site.
I would like to add a smallish product section to the site with general info and already have set things up so I would avoid real duplicate content - different layout, different descriptions, titles etc. I now realised that, as it is a shared database, all the product images have url's from the commercial site, meaning loads of links going to the commercial domain.
I am therefore leaning towards blocking the directory containing the new product section with robots.txt & adding noindex tags to the pages. I don't really need to rank for these pages.
Would this be enough or would there still be a risk of some penalty?
Also I am not sure what to do with the 'landing page'. There would be a link to it in the menu, so on every page of the site (and the link-term would have to be related to the products). Should I add a rel=nofollow to that link? Or should I let Google index that page and just disallow all the other pages?
Could it be that just the fact that the second site would now also have a relation to this specific commercial sector triggers a penalty?
[edited by: tedster at 6:07 pm (utc) on Jan. 9, 2010]
[edit reason] member suggestion [/edit]