We have several large Ecommerce sites with hundreds of links on each page. I have been trying to think of ways to focus our internal linking to increase certain pages relevancy. My thought was to put nofollow in the main navigation (since there are hundreds of links there controlled by dropdowns) and only follow the links on each page for the products we are selling and promoting (15-20 links). I would still be using a sitemap that includes the links. Is this a terrible idea?
if a link is nofollowed in the main navigation does that still count as the one mention for google if it points to the same page that a normal link points too that is in the content of the page?
since all of the main navigation is the same on every page of the website would it be good to only put nofollow on the subpages/subsections and leave the home page navigation alone (that would allow the spiders to crawl all of those links on the home page but not crawl those same links on the subsections where I could then focus the linking).