Regine has a fascinating interview with the Derivart folks over on her personal blog. They're doing some great work making visible the invisible world of financial flows and systems:

Your website says that your work is "located at the intersection between art, technology and finance." That's a very unusual combination. Can you tell us how and why you came to be interested in that subject?

We believe contemporary art should engage with the social problems and realities that surround us. In this sense, we believe that the capital markets embody like no other institution the economy of information, technology and flat organizations that defines our age. We came to be interested in this through different paths - mass market consumption, the visualization of large volumes of information, and the sociology of financial markets.