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Institute for Legal Questions on Free and Open Source Software

II. Licenses

Because no established or primary definition of Open Content exists, the licenses are very heterogenous. Below is a (non-exhaustive) list.

    1. Apple's Common Documentation License (v. 1.0):
      http://www.opensource.apple.com/cdl
    2. Creative Commons Attribution 1.0:
      http://creativecommons.org/licenses/by/1.0/legalcode
    3. Creative Commons Attribution 2.0:
      http://creativecommons.org/licenses/by/2.0/legalcode
    4. Creative Commons Attribution 2.5:
      http://creativecommons.org/licenses/by/2.5/legalcode
    5. Creative Commons Attribution 3.0:
      http://creativecommons.org/licenses/by/3.0/legalcode
    6. Creative Commons Attribution 4.0 International:
      https://creativecommons.org/licenses/by/4.0/legalcode
    7. Creative Commons Attribution No Derivatives 1.0:
      http://creativecommons.org/licenses/by-nd/1.0/legalcode
    8. Creative Commons Attribution No Derivatives 2.0:
      http://creativecommons.org/licenses/by-nd/2.0/legalcode
    9. Creative Commons Attribution No Derivatives 2.5:
      http://creativecommons.org/licenses/by-nd/2.5/legalcode
    10. Creative Commons Attribution No Derivatives 3.0:
      http://creativecommons.org/licenses/by-nd/3.0/legalcode
    11. Creative Commons Attribution NoDerivatives 4.0 International:
      https://creativecommons.org/licenses/by-nd/4.0/legalcode
    12. Creative Commons Attribution Non Commercial 1.0:
      http://creativecommons.org/licenses/by-nc/1.0/legalcode
    13. Creative Commons Attribution Non Commercial 2.0:
      http://creativecommons.org/licenses/by-nc/2.0/legalcode
    14. Creative Commons Attribution Non Commercial 2.5:
      http://creativecommons.org/licenses/by-nc/2.5/legalcode
    15. Creative Commons Attribution Non Commercial 3.0:
      http://creativecommons.org/licenses/by-nc/3.0/legalcode
    16. Creative Commons Attribution Non Commercial No Derivatives 1.0:
      http://creativecommons.org/licenses/by-nd-nc/1.0/legalcode
    17. Creative Commons Attribution Non Commercial No Derivatives 2.0:
      http://creativecommons.org/licenses/by-nc-nd/2.0/legalcode
    18. Creative Commons Attribution Non Commercial No Derivatives 2.5:
      http://creativecommons.org/licenses/by-nc-nd/2.5/legalcode
    19. Creative Commons Attribution Non Commercial No Derivatives 3.0:
      http://creativecommons.org/licenses/by-nc-nd/3.0/legalcode
    20. Creative Commons Attribution Non Commercial Share Alike 1.0:
      http://creativecommons.org/licenses/by-nc-sa/1.0/legalcode
    21. Creative Commons Attribution Non Commercial Share Alike 2.0:
      http://creativecommons.org/licenses/by-nc-sa/2.0/legalcode
    22. Creative Commons Attribution Non Commercial Share Alike 2.5:
      http://creativecommons.org/licenses/by-nc-sa/2.5/legalcode
    23. Creative Commons Attribution Non Commercial Share Alike 3.0:
      http://creativecommons.org/licenses/by-nc-sa/3.0/legalcode
    24. Creative Commons Attribution NonCommercial NoDerivatives 4.0 International:
      https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode
    25. Creative Commons Attribution NonCommercial ShareAlike 4.0 International:
      https://creativecommons.org/licenses/by-nc-sa/4.0/legalcode
    26. Creative Commons Attribution Share Alike 1.0:
      http://creativecommons.org/licenses/by-sa/1.0/legalcode
    27. Creative Commons Attribution Share Alike 2.0:
      http://creativecommons.org/licenses/by-sa/2.0/legalcode
    28. Creative Commons Attribution Share Alike 2.5:
      http://creativecommons.org/licenses/by-sa/2.5/legalcode
    29. Creative Commons Attribution Share Alike 3.0:
      http://creativecommons.org/licenses/by-sa/3.0/legalcode
    30. Creative Commons Attribution Share Alike 4.0 International:
      https://creativecommons.org/licenses/by-sa/4.0/legalcode
    31. Creative Commons Licenses:
      http://creativecommons.org/licenses
    32. Creative Commons Zero v1.0 Universal:
      http://creativecommons.org/publicdomain/zero/1.0/legalcode
    33. Digital Peer Publishing License - "freie DPPL" (f-DPPL):
      http://www.dipp.nrw.de/lizenzen/dppl/index_html/fdppl/f-DPPL_v1_de_11-2004.html
    34. Digital Peer Publishing License - "modulare DPPL" (m-DPPL):
      http://www.dipp.nrw.de/lizenzen/dppl/index_html/mdppl/m-DPPL_v1_de_11-2004.html
    35. Ethymonics Free Music License:
      http://www.ethymonics.co.uk/fml.html
    36. GNU Free Documentation License (FDL) (v. 1.1):
      http://www.gnu.org/licenses/old-licenses/fdl-1.1.html
    37. GNU Free Documentation License (FDL) (v. 1.1):
      http://nautix.sourceforge.net/docs/fdl.de.html
      (inoffizielle deutsche Übersetzung)
    38. GNU Free Documentation License (FDL) (v. 1.2):
      http://www.giese-online.de/gnufdl-de.html
      (inoffizielle deutsche Übersetzung)
    39. GNU Free Documentation License (FDL) (v. 1.2):
      http://www.gnu.org/licenses/old-licenses/fdl-1.2.html
    40. GNU Free Documentation License (FDL) (v. 1.3):
      http://www.gnu.org/copyleft/fdl.html
    41. ifrOSS` Freie Lizenz für Texte und Textdatenbanken (IFL Text):
      http://www.ifross.de/ifross_html/ifl.html
    42. Linux Documentation Project Copying License:
      http://tldp.org/LDP-COPYRIGHT.html
    43. Lizenz "Freie Kunst":
      http://artlibre.org/licence.php/lalde.html
      (Übersetzung der Free Art License)
    44. Lizenz für die freie Nutzung unveränderter Inhalte:
      http://www.cec.nrw.de/Lizenzen/uvm-lizenz2html.htm
    45. Lizenz für die nichtkommerzielle Nutzung von Inhalten an Schulen und Hochschulen:
      http://www.cec.nrw.de/Lizenzen/uvm-lizenz4html.htm
    46. Lizenz für die Nutzung von Inhalten in bestimmten Nutzerkreisen:
      http://www.cec.nrw.de/Lizenzen/uvm-lizenz3html.htm
    47. Open Content License (OPL):
      http://opencontent.org/opl.shtml
    48. Open Directory Project License:
      http://dmoz.org/license.html
    49. Open Publication License (v. 1.0):
      http://opencontent.org/openpub
    50. Open Source Music License (OSML):
      http://www.rootrecords.org/licenses.html
    51. Public Documentation License (PDL):
      http://www.openoffice.org/licenses/PDL.html