I've read that having links to related authority sites may help your pages get closer to the number one spot. I'm wondering if having links to semi-related authority sites is useful or not. I define a semi-related authority site as: A sites in the same general category, but not necessarily one of your search result competitors. For example, imagine a site about fruit. The landing page talks about fruit in general and includes some text like "Fruit is good for you. You can eat it by itself or in a fruit salad. Be sure to wash it because eating rotten fruit is bad for you.". If the landing page contained DO-FOLLOW links (to high-ranking sites) for eating rotten fruit and fruit salads, does that help the landing page in anyway?