Do links within the page to other pages influence quality of that page? How can you tell that the user found what he was looking for when he landed from the search results of the page containing links to other pages?
Sometimes links on the page can improve the quality of a page, but I think that's something where you wouldn't want to see that as kind of an artificial factor. Just because there are links on a page doesn't mean it's necessarily good.
We saw that, I don't know, way in the beginning, when people would put links to Google, or Wikipedia, or CNN on their website, and assume that search engines would be naive and think, oh, they're linking to these well-known websites, therefore, the content itself must be good.
So you can add value to your website by having links on those pages, but it's not the case that just because you have links then we'll suddenly see your website as being higher quality.