Let's look at the various features of the site:

First of all, notice that the column occupying the left ide of the screen consists exclusively of category names, which link to lists of case studies. There are, however, several other means with which to find the solutions you are interested in. These are located in the top row.

The Search button allows free-text searching of the entire site, including questions and comments within the discussion groups. A detailed explanation of the search functions is included.

The Browse by category button links to a single list of all of the case study titles, arranged by category. This is useful in the event that you wish to run a keyword search through the titles, using your browser's built-in search functions.

Browse by region lists all current case studies, this time arranged alphabetically by location.