No, it's not. The US and a few other developed countries are suffering from an epidemic of ADD diagnoses. Unrestricted computer use is certainly not a good education policy, but there's no evidence that it causes ADD.
You can't read a book properly when you know you can just jump to the middle or the end to see the most interesting bits.
Asperger's, for example, has been pushed under "autism spectrum disorder". And Pluto is not a planet.
I could see Internet overload/distraction be diagnosed as some ADD-like disorder, or the main cause of it...
And lest you think I am just being facetious, this was a legitimate criticism of writing back in the day.
>Writing, Phaedrus, has this strange quality, and is very like painting; for the creatures of painting stand like living beings, but if one asks them a question, they preserve a solemn silence. And so it is with written words; you might think they spoke as if they had intelligence, but if you question them, wishing to know about their sayings, they always say only one and the same thing. And every word, when once it is written, is bandied about, alike among those who understand and those who have no interest in it, and it knows not to whom to speak or not to speak; when ill-treated or unjustly reviled it always needs its father to help it; for it has no power to protect or help itself.
http://www.english.illinois.edu/-people-/faculty/debaron/482...