The ICC homepage - International color consortium
Other color management engines
Argyll - Graeme Gill's free color management system
SampleICC- Reference implementation from ICC
Free color management (mostly for linux) - By Karl Heinz Kremer
efg's Computer Lab - The mother of all imaging links
Bruce Lindbloom web site - Outstanding site. Check out the calculators!
How to Measure Color - From BYK Gardner USA
An article about LCMS2 unbounded mode - by Elle Stone
ImageMagick - The best free tool for image manipulation.
GraphicsMagick - A robust collection of tools and libraries. Image processing and a lot of supported file formats among other advanced features.
Gerard Juyn's Libmng - A free library for handling MNG/PNG file format
LibPNG - The reference implementation of PNG file format
PNGcrush - An optimizer for PNG
LibTiff - A free library for handling TIFF file format
AWare Systems on TIFF - Lots of useful information about TIFF format. A must for any serious developer interested on TIFF.
Tom Lane's IJG - A free library for handling JPEG file format
Scribus - Scribus is a Layout program for Linux®, similar to Adobe® PageMaker, QuarkXPress or Adobe® InDesign, except that it is published under the GNU GPL.
GIMP - The GNU Image manipulation program is using LittleCMS as well.
Mrwtoppm - A program for converting raw image files from Minolta DiMAGE 5 and 7 cameras into ppm files.
ICM profile hacker by Eddie Matejowsky
tcllcms - tcl-interface to the Little Color Management System
foo2zjs - a linux printer driver for ZjStream protocol
digiKam is an advanced digital photo management application for KDE, which makes importing and organizing digital photos a "snap".
PyCMS pyCMS is a Python module that provides ICC color management services for imaging in Python through the Python Imaging Library (PIL).
Bob Groothuis- HDRI panorama photography for film & video, VFX and more... from the Netherlands.