also as far as noise goes, a bit little simplistic but
in film it was expose for the shadows, to make sure you got texture in shadows and highlights were not clipped, so dslrs at least originally (nikon d70 / d50 especially come to mind) underexposed a fraction or where at least of this tendency. However digital noise hides in the dark, so it is better to overexpose a fraction with digital and then pull it back to 'correct' exposure. So while your wading through the wealth of info on luminous landscape be sure to check the 'expose right' section.
Expose Right
of course you have to have enough knowledge to understand it properly and then implement (that 's not a criticism, I read it and about 6+ months later, went ahhh! I think I am beginning to understand what he was on about
Phil