About the nofollow attribute I've written a lot of posts, all of them would point out the distribution of PageRank using the nofollow attribute where stated and briefly explains PageRank sculpting as well as advanced methods for better ranking of the most important pages within the domain. In the post to link your blog post with SEOmoz in which Matt Cutts confirmed and recommended PageRank sculpting as a new method for better ranking. In short it all now because you can not forget the Google completely changed the way we see the nofollow attribute on links within the domain itself. PageRank sculpting the nofollow attribute does not work says Matt Cutts.
I will try to simplify the basis of fasting Sculpting PageRank Is Dead! Long Live PageRank Sculpting! where it says that nofollow was introduced 2005th year and presented as an attribute that Webmasters can control the PageRank of your site. This meant that if the site has 10 links on it each of these links is given by formula PR1 PageRank. If 5 of those 10 links have nofollow on it each of the other 5 links that did not have nofollow on it to get a PR2 because it links with nofollow are not counted in the PageRank distribution. In 2008. was changed to a Google that returned to its previous state, and that is to have the nofollow links are counted in the PageRank distribution of the site which means that nofollow does not make sense to ask more because each of these 10 links with a nofollow or without the PR1 profits.
What this means now, what should I do now? Nofollow no longer need to put in your site links to irrelevant due to the better rating of the other internal pages that do not have nofollow because it no longer works. I have to seo.hr nofollow on the link in the footer such terms as no more sense to have when it counts like anyway, regardless of nofollow. Matt Cutts also no longer recommends the use of nofollow that PageRank sculpting methods in combination with nofollow attribute. You are free to remove the nofollow attribute to all links that link your internal pages.
As a reason for the change to the old state that is too much to put nofollow.
