bjg
I am a long-time GNU fan. I started using GNU software in the late 80's.
I am one of the developers of the GNU Scientific Library, a general purpose numerical library for C/Unix systems. I sell commercial support for GSL.
I also publish printed free software manuals through my company Network Theory Ltd. The money raised from the sales of the books helps to support the development of more free software and documentation, through my own work and through specific donations to other projects.
My latest book is "An Introduction to GCC", a tutorial for new users of gcc and g++. It is published under the GNU Free Documentation License.
As of January 2006 over $8000 has been donated to various free software projects and organisations.
