ArcExplorer is a custom mapping tool that can be used in a web browser. ArcExplorer allows you to perform a range of basic GIS functions such as display, query and retrieve data. Adobe Photoshop is an editor for still images. It is equipped with a diverse range of processing tools, enabling users to create or modify content through the use of drawing tools, filters, or other plug-ins. Adobe Illustrator is a comprehensive vector graphics environment that is ideal for all creative professionals, including web and interactive designers and developers, multimedia producers, motion graphics and visual effects designers, animators, and video professionals. The latest version, Illustrator CS4, is the fourteenth generation in the product line. A software application for creating, manipulating and analysing GIS (Geographic Information System) data. ArcView may be used to create geographic maps, manipulate spatial features, analyse attributes and characteristics, and visualise spatial information in an understandable form. Current versions of the software enable the user to import and manipulate several content types in a spatial environment, including demographic information, CAD designs, still images and other types of content. A multi-platform software application primarily used for image composition and editing. The basic tool may be augmented by plug-ins and extensions that allow the use of new file formats, effects filters and batch processing capabilities. GIMP was initially created to manipulate raster images, but has been extended to provide limited vector image and moving image support. Source.