Fine Art Trade Guild http://www.fineart.co.uk/
The Fine Art Trade Guild is an international trade association established in 1910 with objectives to inform, promote and develop the art and framing industry.Good source for info on giclee and other fine art print standards.

Wilhelm Imaging Research, Inc. http://www.wilhelm-research.com/ Conducts research on the stability and preservation of traditional and digital color photographs and motion pictures. The company publishes brand name-specific permanence data for desktop and large-format inkjet printers and other digital printing devices. Industry's Bible.
You can find here specification on Epson 9600 (UltraChrome) printer, which is a wider version of Epson 7600, the printer used for 20"X20" and 24"X24" flower prints you can see and purchase from the Paralax Virtual Gallery Site.

Silverprint http://www.silverprint.co.uk/
Excellent source of photographic and digital printing materials. Good prices.