In my opinion the answer to both questions is quite similar.
No one doubts that there is abundance of information . What educators should do as well as students is to learn how to distinguish between good and bad recourses. May be this can be learned from previous examples from people who came across with load of information and managed to pick up the good ones. Social networks can be helpful but at the same time they can be confusing. Students need to be guided to select information and educators should have the training to guide students.