for generous financial support and the opportunity to be part of a dynamic research environment outside my home institution. My informants, for being willing to share ideas with a stranger in the spirit of scientific exchange. Some meetings lasted only five minutes between conference sessions, others lasted several hours, but all were useful in one way or another. I am particularly grateful to those informants who went out of their way to accom modate iny travel schedule or time zone differences. My informants' administrative assistants, many of whom went beyond the call of duty to help find gaps in their principals' busy schedules, good quality dis count accommodation, transport information, and Internet access. Special thanks to Wendy Deaner and Carla Childers at UT Southwestern. Roger Brent, Dawn Warfield and Lauren Ha at the Molecular Sciences Insti tute, for hosting and helping to organise the first ever Open Source Biology work shop, and for allowing me to share their facilities during the first two weeks of my visit to the United States. Thanks also to all who attended the workshop. Brian Wright, Sara Boettinger and Greg Graff, for encouragement and advice. Professor Jerry Reichman of Duke Law School, for encouraging me to con tinue my investigations, for subsidising my attendance at the April 2003 TRIPS conference and for making me welcome in his home along with other much more distinguished guests. Jennifer Jenkins and Lynn Martin, for their gracious hospi tality despite the short notice. The people at CAMBIA, for extraordinary creativity, openness and enthusi asm, especially Andrzej Kilian, Eric Huttner, Carolina Roa-Rodriguez, Carol Nottenburg and Richard Jefferson. Dr Dianne Nicol and Jane Nielsen at the University of Tasmania, for intellec tual fellowship and emotional support. Professor Don Chalmers, for flying me down to visit and treating me to what looked like a wonderful Christmas lunch. Professor Larry Lessig, Glenn Otis Brown, Neeru Paharia and Laura Lynch at Creative Commons, and the students of Professor Lessig's Advanced Contracts seminar at Stanford Law School, for allowing me to witness the inner workings of the Creative Commons initiative. Special thanks to Neeru and Laura for driving me between Berkeley and Stanford. Douglas Bock, Lizzy Wenk and Laura Grego, for very generous hospitality in Berkeley and Cambridge. Nigel Snoad, for putting me up in Manhattan and welcoming me to New York by proxy. Amy Simpson, for being such a fine proxy. The organisers of the 2003 Genetics Congress in Melbourne, for waiving the substantial attendance fee on the condition that I rough it with the journalists. The journalists, for showing me where to find the coffee, the computers and the free food. Ms Judy Jones, acting supervisor in the early months of my candidature, with out whom the transition from extended disability leave to full-time study would have been much slower and more painful. Professor Phillipa Weeks, Trevor Allen of the ANU Disability Support Unit, and the IT and administrative staff at t...