A comprehensive view of the market for digital signage is provided. A recent online poll of readers shows that about 40% are evaluating digital signage as either a primary revenue stream or as a segment of a media operation. Two thirds of those surveyed want more information. For companies that want to use digital signs to deliver their advertising messages, such products as flat-panel plasma and LCD components are available from vendors, along with rear-projection microdisplays, high-density MPEG servers, IP-connectivity, and graphical user interfaces (GUIs). Today's digital signs have larger screens, higher resolution, and brighter images. The global sales of plasma and LCD monitors are expected to rise to a market value of almost $2.2 billion in 2008. Topics covered include potential markets, choosing a signage platform, and leading edge players ClarityVisual Systems, Adtec Digital, and NEC-Mitsubishi. Applications include those for museums, movie theaters, airport terminals, and shopping malls. The leading four choices are plasma display panels, liquid-crystal displays, microdisplay rear protection, and light-emitting diodes (LEDs). For instance, LEDs are the simplest technology for digital signage. LEDs can be assembled into huge arrays of diodes that will display well in any type of lighting. ClarityVision has been selling to financial institutions and public concourses, and Adtec is providing an economical IPTV system for the South Bank Centre in the United Kingdom. NEC-Mitsubishi's 30-40-inch LCD monitors are used by a Minneapolis-based restaurant, Davanni's Pizza and Hot Hoagies.