If you use Adobe Lightroom, either the current version (
2.x) or the Beta (
3) a great resource is Victoria Bampton, the "
Lightroom Queen".
She offers a ton of free resources like "
what's new in Lightroom 3" and a thorough
comparison between Lightroom 2 and 3 and
Lightroom Keyboard Shortcuts (
as a free download).
Victoria also offers a "
Missing Lightroom FAQ's" series (
for all versions of Lightroom) for sale in eBook form.
Se be sure to add the
Lightroom Queen as one of your Lightroom resources.