Richard Prince, a painter and photographer, displayed his new collection, "New Portraits" as a part of the Frieze Art Fair in New York. The collection consists of enlarged screenshots of public Instagram photos. No, he is not violating any copyright laws to display--and SELL--these photos. Most pieces in the collection sold for upwards of $90k. (Yes, seriously. 90k for someone else's photos.) Read more here.
Don't say your librarian didn't warn you!