3 P's and a Q

First I have to ask, are we still required to do these? I notice only a few people have for this week and I know there was some confusion among everyone in class based upon the syllabus. Just thought I'd ask...

1) Make it obvious what's clickable - Using the example of Orin Hatch's 2000 presidential campaign website the book discusses how important it is to make it obvious to visitors what is and is not clickable. His site has 18 links but only two of them made it clear they were links. This is important because taking time to discover links takes away patience and time to process the message and complete tasks.

2) Happy Talk - Happy talk, or the "welcome to our site, here's why its so great..." intro to pages (usually on the homepage) detract from other more significant elements on the site and are usually read very casually if they're read at all.

3) "Link-dominant" vs. "Search-dominant" - Some users are naturally inclined to go straight for the links on a page and search from there, whereas others are inclined to go straight for a search box on the page to navigate. For everyone else who is not already one of these types, the method of browsing is usually dependent on how much time you have to search.

Question: As it relates to the differences between Link and Search dominant users, how exactly does this correlate to design, in terms of a user profile/layout elements, etc.?