I used to be an adjunct professor and the one thing that shocked me (but shouldn't have) was how much students just took things from the Internet as though it was just one big salad bar of information where you can take what you want-- no questions asked. It feels that way a lot of times when I look at blogs and Instagram. "Sharing" feels way too close to taking (even if you "credit" or tag) and then sometimes taking is just taking.