Switching between old process and new process in Lightroom 3
How to switch back and forth between the old and new raw conversion engines (2003 process and 2010 process) in Lightroom 3.
Edge Detail in Lightroom 3 beta: what does it do?
A look at the effect of the Edge Detail slider in Adobe Lightroom 3 beta and when it might be useful
Protect fine colour detail in Lightroom 2
Colour noise reduction in Lightroom 2 is subtle but if you leave it set to its default value of 25, it can remove significant colour detail from SOME of your images. Take a look at the examples.