I really like the way facebook.com is organized. I think the layout is dispersed in a way because each piece has its assigned space. The website is designed in such a way that allows multiple generations to be able to use it without getting bogged down by confusion as to what each of the links goes to, especially after they transitioned to timeline format.
The website I found to be an effectively designed website is http://enditmovement.com/. This website uses emotional power to communicate the foundation's purpose and its mission. The website uses both pictorial and numerical images on the home page of the website. If you scroll almost to the bottom of the page, there are facts and figures concerning slavery and its prevalence around the world. All of the words and captions on the website are simple and straightforward and direct.
The campus map is a good example of how the fidelity of an image can help the user grasp the important material. The accuracy of the landscape (especially the central location of campus--reflection pond and amphitheater) helps new students learn where they are on campus relative to where they need to go next.
Anti-abortion, religious websites would be an example of the use of emotional power. I won't link to any since the sites are usually very graphic, but you can Google "Army of God" or "Wicked Shepherds" to see what I mean.
I've seen some extremely effective anti-drunk driving ads on billboards and television that appeal to human emotion. They are designed to make the audience feel responsible for the pain and suffering of the victim in the ad if said audience has ever driven drunk or allowed someone to. Take the link below: