From a posting on Open Culture:
Through next April, you can visit “Abstract Expressionist New York,” – an exhibit at the Museum of Modern Art (NYC) that looks back at the work of Jackson Pollock, Mark Rothko, David Smith, Willem de Kooning and many others. If you can’t make the trip, then you can do the next best thing. Fire up your iPad, download the free app created by MoMA, and start watching a slideshow of 60 paintings currently on display in “AB EX NY.” All images are presented in high resolution, and the app also features 20 videos created by the curators, each of which concentrates on individual painters and their techniques. And did I mention that the app is free?