Sociologist and media researcher at Humboldt University, Berlin, with an interest in the digital commons; organizer of the biannual Wizards of OS conferences in Berlin. [Photo by Joi Ito]

Senior researcher at Maastrict University founder of the online journal First Monday scholar of Free/Libre and Open Source Software (FLOSS). [Photo by Joi Ito]

Harvard Law School; theorist of the information commons.

Professor of Computer Science and Engineering, MIT; free software, Internet, intellectual property and OpenCourseWare initiative. [Photo by Joi Ito]

Leading advocate of open source software, Linux expert and editor of a series of open source books for Prentice Hall.

Columbia Law School; General Counsel, Free Software Foundation; leading champion and interpreter of free software and its political dimensions.