From time to time, I go on about over-saturated flower images posted on-line. I had been meaning to write an article on why that happens and how to fix it.
To my great delight, I've come across an article that says it better than I ever could:
http://ninedegreesbelow.com/photogra...-examples.html
Although it gets technical here and there, it does have a good 'red flower' example and doesn't go too deeply into color space theory - trusssssst me
The site itself is a excellent resource for all sorts of related matters.