He is a popular science fiction author and his novels are given away for free on the Internet as Creative Commons-licensed downloads. They can be freely shared, and in some cases, remixed or translated and sold in developing countries. Perhaps surprisingly, this has led to good sales in the real world. You should read this Wired story about him.
He is former Director of European Affairs for the Electronic Frontier Foundation, a technology advocacy nonprofit that works to upload liberty in technology law, policy and standards.
Listen to the interview.