With the advent and spreading of information technology. I believe the first thing to do is to get into the internet where one gets information fast. The best way for me to get academic information is to read journals, article and textbook. It is difficult for me to read something on the computer and understand it. I must put it on paper first. In terms of presentations i think that having visual aids also helps elaborating a certain points.
Written information is difficult to comprehend most of the times and thats what makes studying difficult, hence presentations help us understand that which we did not understand after reading dozens of pages of books.
I would finally say that presentations are the best method of getting information especially when the presenter is interacting with the audience.