InFocus Direct - store.infocus.com - The best place to buy InFocus projectors, accessories and more online!
InFocus Cables - www.infocuscables.com - The great resource for finding cabling solutions that meet your projection needs.

Data/Video Signal Output (Video Cards):
www.ati.com ATI Technologies is a world leader in the design and manufacture of innovative visual processor solutions.

Interfacing / Installations:
www.inlineinc.com A manufacturer of interfacing equipment.
www.altinex.com A manufacturer of signal management solutions for the audio/visual communications industry.
www.extron.com A manufacturer of computer-video interfaces, switchers, distribution amplifiers, computer-video scan converters, and high-resolution cable.

Control systems:
www.amx.com A manufacturer of control system products including RS-232 control systems, IR control systems, etc.
www.crestron.com A manufacturer of advanced control and automation systems.
www.jupiter.com A manufacturer of video wall controllers.

Others:
www.vesa.org The organization that creates the playing rules.
www.icia.org The International Communications Industry Association, the projection industry's own organization and the people behind the annual Infocomm Shoot-Out.