Do you think that since the invention of the Internet many students became a lot lazier? Being able to access any kind of resources on the Internet makes writing a paper a breeze. What is more, some students (I am not saying that all of them do it) simply copy content from the Internet and then present it to their teachers.
When I was a student many years ago, I would spend countless hours in the library composing my papers. Paper books was the only type of resource at the time and there was no other way to write a paper on any topic. I know that on the other hand the Internet helps students a lot by making information a lot more accessible and I am glad this is the case.