Free software licenses
Francesco Potortì, 2004

  1. Free software licenses
  2. The four dimensions of free software
  3. What is free software?
  4. The four freedoms
  5. Proprietary and semi-free software
  6. Copyleft
  7. How to make a program free
  8. The GNU GPL
  9. The GNU LGPL
  10. The new BSD and the X MIT license
  11. Contributing to already existing free software
  12. Free software documentation licenses