A good book on brain hacks like the aforementioned spaced repetition is "Mind Performance Hacks": http://www.amazon.com/Mind-Performance-Hacks-Tools-Overclock...
And another good read is "Pragmatic Thinking and Learning": http://pragprog.com/book/ahptl/pragmatic-thinking-and-learni...
You can also try this site: http://lesswrong.com This is a good section to start from: http://wiki.lesswrong.com/wiki/The_Science_of_Winning_at_Lif... Be warned, though. The writing on this site is heavily influenced by AI research so it tends to be somewhat... Vulcan, which can can be good or bad depending on your preferences.
It have citations and is written by a psychologist. However, I did not have a lot of time to compare notes between books written by other psychologists in the field.
The thing is, being a specialist means you don't spend much time scrutinizing what is wrong and not wrong in their studies or books in other fields. You sometime have to trust scientists for being scientific.
That's a subject where I know that I can't tell the difference by myself - could you recommend some authors? I'd be happy to put in the effort into reading technical papers which haven't been re-written for a popular audience yet if the quality is higher, but I don't know where to look.