I have an online store with different categories in the main navigatio. Ie. Category A, Category B etc.
I also have a link in the main nav called ‘Sale Items’. It points to a page which lists items which are on sale from both Category A and Category B.
Should I add a rel=”nofollow” tag to the Sale Items link?
I wouldn’t worry about it.
If you add the rel=”nofollow” tag, the tag is only a suggestion. You cannot actually stop the search engine from indexing the sales page.
You may want to consider using the canonical relationship. However, I would think you would want both the sales page and the category indexed.
http://googlewebmastercentral.blogspot.com/2009/12/handling-legitimate-cross-domain.html