I've also noticed that I retain information much better when I'm actually writing it down on paper, than when I take quick notes on a laptop. I don't know the cognitive basis for this, but I suspect that it has something to do with it being a much 'slower' medium to register information in. Somehow your brain is forced to focus on the information that's at hand, instead of immediately trying to skip ahead to what's coming up next.

I don't use moleskines though, they're way overpriced for the poor quality paper they offer (i.e. it's not fountain pen friendly, which is what I usually use). Spiral notebooks are much cheaper, practical and usually provide better quality paper.