Ok, we have a question from Michel in the Netherlands, who asks: “Is it a good thing to put 'nofollow' in links to a disclaimer, privacy statement and other pages like that with the internal PageRank in mind? I hear different stories about this.”
Good question, the reason that I would use 'nofollow' is if you truly don't want a page indexed at all. So for example, a login page, Googlebot doesn't know how to log-in and that's not of any value for users to have. I can imagine that a disclaimer or a privacy statement could be kind of useful.
So you can put those links on, it's not like it's going to cause you a spam penalty but truthfully, I would tend to worry more about having enough good links because you have enough great content that you tend to get a lot of people linking to you and you tend to get a lot of good coverage in Google's index.
It's a second order effect at best. I really wouldn't spend a lot of time saying “Oh I'm gonna nofollow all my links to my stuff that I don't care about”. Typically you do better by maybe linking or not linking to stuff. Link to a privacy policy once but you don't have to link it on every page of your site for example, or something like that.
But really, I would only use it for the pages that you really don't want to be in Google at all. Don't worry so much about sculpting. That tends to take a lot more time and not really be as big a bang for your buck compared to just putting your efforts in on making great content that will attract links.