Each works in a slightly different way – for example, the File template is designed to let you display the contents of a specific file (typically something that updates regularly, like a log file), while Image can be used to display graph data from specific systems, an image from a public website (like a webcam) or simply an image file or folder full of images from your hard drive. GeekTool installs itself as a Preferences pane: once in place, launch the tool and you'll find three icons ready and waiting for you: File, Image and Shell. These Geeklets are then placed on your desktop where they can be easily customised in terms of appearance according to your individual whim. It's designed to let you create customised widgets – or “Geeklets” as GeekTool likes to call them – containing all kinds of information. If you're in the camp that finds it useful to scatter these tiny panes of information across your desktop, then the GeekTool will be up your street. Widgets: you either love 'em or hate 'em.