The fact is that a larger proportion of facts in books than on the internet are liable to be correct (although of course this isn't infallible at all - plenty of books get plenty of stuff wrong, including school text books), so relying on the internet as a primary source of research as most youngsters do these days results in failure.
There was a good example on TenTenths recently. His final year project (can't remember if it was A-Level or Degree) was to design a roll cage for a car. He'd been 'taught' FEA, but learnt it by reading websites rather than attending class, and completely misunderstood what FEA results mean. He though a bigger MAX number meant the part was stiffer, and so wrote that they needed to make the roll cage out of hexagon tube because it's MAX stress was more than round tube.
The teacher listened to his report, took the submission, and then I told him he was looking at it the wrong way around - the FEA program was telling him the hex was closer to failure than round, and hence the one thing he DIDN'T want was hex tube. I think I upset him by telling him this.
Quite frankly the internet is USELESS for learning, but quite good at getting a very very brief oversight, or simply getting everything wrong.