For a museum like the MoMA, copyright is a tricky issue, and to publish online pictures requires long enquires about the right owner and getting him (or them) t

For a museum like the MoMA, copyright is a tricky issue, and to publish online pictures requires long enquires about the right owner and getting him (or them) to accept (and they might not, or ask for money...). The cost of this kind of operation for a vast collection can range in the millions of dollars. I guess you can't blame the MoMA for using their money differently, and you'd rather blame it on the copyright mess.