Another obstacle to those who want to blog responsibly is copyright. Sure, Tumblr is full of infringing images that sometimes get taken down, but those contribute next to nothing. People with real knowledge about some of the greats just aren’t doing meaningful posts. And they can’t unless they violate copyright. What Magnum and other agencies should do is create press kits with approved images for blogs. Maybe have one new kit per week from to build an educational post.