Just curious, I just can't understand how underlining in different colors and taking notes in the margin helps anything. I recall trying to take notes in university classes, but I just stopped, since taking notes at the same time as listening to a lecture makes it difficult to follow the lecture (that you're there for in the first place). In the end, I didn't take notes for 4.5 of the 5 years I was in school, and had good grades. But maybe it just worked for me?