Multiple Monitor Systems provide a complete multiple monitor solution that includes screens with reduced separation for improved visual continuity in addition to power supply, mechanical structure and multi-media.
Link to 9X Media. Sponser of the Multiple Monitors.org site

PanoramTech manufactures high end 3 panel graphic displays designed for the high performance graphics, military and design industries.
Link to 9X Media site Link to Multimon

9X Media Inc - is the world's leading manufacturer of modular multiple monitor systems featuring 2 to 9 screens, modular design and Cerwin Vega sound systems for explosive visual and audio performance.
Panoramtech