Here are links to the Help documents for all CS6 applications:
http://blogs.adobe.com/premiereprotraining/2010/08/help-documents-for- creative-suite-5-pdf-and-html.html
There is a book in the works about CS6 Production Premium that has a significant section on SpeedGrade. There is also a book on After Effects coming that covers SpeedGrade somewhat. Both will be out this summer.
There's also a 2-hour video series here:
http://www.video2brain.com/en/getting-started-with-speedgrade
And, of course, there's this series of more than a dozen videos by our own Patrick:
http://tv.adobe.com/show/learn-speedgrade-cs6/
