Please visit the following sites which give useful information :

Smartcolour
Smartcolour creates color charts, tools and resources for color printers and copiers.
http://www.smartcolour.ca

Digital Printing and Posters Printing Commercial 4 Color Digital Printing
Premier digital printing and poster printing company utilizing 4 color process and digital technology. Provides wide range of commercial printing products.
http://www.digitalroom.com

http://www.airographics.com
Airo Graphics full service trade printing, prepress and bindery. Since 1986. Fill in our online quick quote form. Fast service, Phoenix, Arizona.
http://www.airographics.com

Full Color Printing
USA Printing Online is a full service commercial printing company specializing in full color off-set printing and digital print on-demand. Online tools and instant quotes available.
http://www.usaprintingonline.com

Printer Cartridges, Parts & Supplies
PrinterSupplies.com offers competitively priced printer, copier and fax supplies & HP & Lexmark Printer Parts. We specializes in hard-to-find items.
http://www.printersupplies.com

Printer - Magic Printer's Best Printer Resources
Printer - The premiere home for all related Printer information.
http://www.magicprinter.com

Imposition Software
Farrukh Systems - Intelligent Imposition since 1989 for digital printers, film or CTP
http://www.farrukh.co.uk

Printing Professionals
A Boston Printing company for business, retail, or anybody who needs Quality printing and copying. From Letterheads to booklets,envelopes to presentations, our service will make you a customer for life.
http://www.printpromalden.com

Digital photo printing software
Print multiple photos on ones page and make print sheets, photo albums, passport,mini ID cards,CD covers and contact sheets.
http://www.ussun.com