Menu-tree navigation:
this website displays this idea very well, because when one moves the curser over the different tabs, subheadings related to that tab are shown immediatly. It is very easy to navigate because the headings are unique and if you know exactly what you are looking for you can also get there very quickly. It is also clean and simple. This tactic is also employed very requently on college sites so that a perspective student can find what they need under a broad heading.
Tab-stop navigation:
is a great example because when a person acesses the page, they have major categories but then they must click on it to then acess the actual content that falls under the headline. This type of site is usefull because it doesn’t distract the user by breaking up there view with a drop down menu. Personally i find that the drop down menus are more helpfull, because i can skip the next step i have to take in a tab stop navigation menu by going directly to the content. This type is useful when there isnt to much content and the creater just wants to seperate the site, but does not have enough content more more categories.
Iconic navigation:
when directed to this site the first picture a person sees is 3 cars standing in a row, and if a person clicks on any of those 3 cars they are directed to new content specifically designated to that topic. then if for example you choose to click on on Tauros then you can choose any of a number of options such as trucks when that is clicked, the options are shown in pictures and that leads you to a page entirely divoted to that model. this type of navigation is handy for the visual sites were it is less about word content then about getting a person to purchase something such as clothing or cars, because people are very likely to see what they want and be appealed with what it looks like rather then reading a lot of recearch.