Trying to find http://help.adobe.com/en_US/lightroom/using/index.html, which is the useful online manual for LR4, is fairly impossible from adobe.com or helpx.adobe.com/support.html. The "Lightroom manual" link at http://helpx.adobe.com/lightroom.html, underlined in screenshot below, just leads to a page with only video tutorials.
![]()

Using the LR Help menu link to "Lightroom Help..." does get you there, but I am skittish to using it as it often launches the broken Air help app at same time.
Using LR4.4, Mac osx10.8.2.