I don't really want to see textbooks change that much, at least the good ones that is in any aspect other than cost.<p>I have only used one electronic textbook and I found that paper books are much easier to use in every way except for cost.  Searching a electronic textbook might be okay but I find indexes are very easy to use most of the time and the rest of the time you aren't looking for the right thing.<p>On the subject of having facebook to help understand concepts I always find that interaction on a face to face basis for learning is much quicker and if you go to a large enough college it is relatively easy to find people in your class out in the common area for help.<p>Some of my best books, like the Hibbeler books on statics, dynamics, and mechanics of materials (<a href="http://www.pearsonhighered.com/hibbeler/" rel="nofollow">http://www.pearsonhighered.com/hibbeler/</a>), are very good and were well worth the money I paid for them.<p>One thing that I hate about textbooks is that certain publishers have cornered the market, at least in the engineering and math departments, and many schools offer horrible textbooks that only the students notice because they are the ones learning for the first time. A prime example of this is the publisher Wiley, I have had books from this publisher from differential equations all the way up to fluid dynamics that were just awful for anything other than problems and basic concepts.<p>Edit: I have had a couple classes that were rather amazing on the textbook stance, especially for engineering, that the teacher had a large enough collection of notes and slides that they were able to make a rather cheap textbook available to students on campus for around 20 dollars, those books always seem to provide good information and good quality that maybe a 9 dollar digital textbook could work in that sense.