Thinkgeek.com has one main navigation system on the home page in the left column. The left column has different categories of products, and you get back home by clicking the ThinkGeek logo. The hierarchy behind the organization of hte left navigation isn't tremendously apparent, but my guess is that it's by best selling items. The navigation never disappears, and when you click on a category, the menu expands under that category and some subheaders appear. Navigation links don't change once clicked on, however, they just change based on whether you are there. Links within the page or on the breadcrumb trail that appears in the content turn purple once they have been visited. The navigation headlines turn white when selected, but the subheaders don't change when you're there. The way you can tell where you are in that case is based on a pretty large and obvious header on the page. You always know where you are because of that. The site doesn't have particularly deep architecture. There are a few levels- main, general category, sub category, product, you can click through user pictures and the like, and if you log in, you can accumulate "geek points" which can be redeemed with your purchases. The architecture isn't flat, but it's pretty easy to get from one place to another. The type is minimal, but pretty basic. The type for the product descriptions is a little dense, but the headers and links are clear, as are the navigation labels. More prominent type is bold, and sometimes it's bigger, though not always. The grid of the page is pretty much the same on each page, and the center content changes based on what portion of the site you are viewing. The iconography and imagery is pretty basic, and the logo repeats the element of a brain all over the page. The photography is meant to sell the products, and it does that quite well. I think there is enough imagery, but perhaps not enough space overall on the page. There's a lot of content to take in and a lot of grid. The main category pages do a better job of displaying the information in a non-cluttered way. The page's colors area also pretty unobtrusive- there are a few shades of grey, a gold color, and some white. The colors don't seem to have been chosen for any particular reason, other than to not interfere with the content too much. The greys are reserved for the banner and the navigation, as well as the space around the content. The content is separated by a gold line across the top of the page as well as some grey and black outlines around white content. The purpose of the site, to sell the product, is achieved, and they have a useful feature of recommended items, and items that other users who purchased that item also purchased. You can also search the site, which is neat. You can't get too specific, but you can search. You can also make a wishlist and click the home link that is above the face of an angry baby. The site, while not the most aesthetically appealing, is inoffensive to look at, and well constructed.