Oh boy, how doesn't it? This really goes back to McLuhan pointing out how television resulted in non-sequential learning. Other writers have said this goes back even further--as one noted, a modern newspaper breaks its stories up across several pages and puts diverse subjects together in an almost Dadaist collage.
But modern technology goes much further by making students interactive participants. Through hyperlinks they can explore in a lot of directions. I think the advantage of this is that they can see connections in new ways, but the disadvantage is that it can be harder to focus on one line of reasoning. As one writer put it, it's almost a pre-literate way of seeing the world. It certainly may be better for right brained invidiauls who see the world more in pictures. But traditional straight point A to point B teaching can be boring and difficult for some to follow, although not impossible with practice.
Another issue, not addressed here, is that the ability to critically separate genuine reality from trivia or false information can be much more difficult. Unless critical thinking is part of the mix you can end up with an almost overwhelming mass of uncorrelated and questionable data. So this has tremendous possibilities, but also huge problems.
PS For fun read the short story, "ms fnd in a lbry" for the problems of information overload. It is at: http://home.comcast.net/~bcleere/texts/draper.html
