Contents  > Computers  > Open Source  > Licenses

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• Open Source Software Licensing Page - Some very interesting articles on free software licensing: history, forms, and problems, seen from a commercial view. Links to some license texts and important open source sites.

  Affero - General Public License Copyleft license, derived from the GNU-GPL, designed to protect software distributed as web services. http://www.affero.org/oagpl.html

  Against DRM 2.0 A free copyleft license for artworks, which forbids DRM. Includes licence text, FAQ, and a few translations. http://www.freecreations.org/

  Aladdin Free Public License (AFPL) For Ghostscript, by Aladdin Enterprises. ftp://ftp.cs.wisc.edu/ghost/aladdin/PUBLIC

  Amoeba copyright notice A free software OS. http://www.cs.vu.nl/pub/amoeba/COPYRIGHT

  Amulet License Agreement CMU Amulet Toolkit License Agreement. http://www.cs.cmu.edu/afs/cs/project/amulet/amulet3/manual/overview.html#1002211

  Apache Server Licenses Overview of the different versions of the Apache licenses. http://www.apache.org/licenses/

  Apple: Apple Public Source License (APSL) Apple's license for software released as source code. http://www.publicsource.apple.com/apsl/

  The Artistic License Perl package license. http://www.opensource.org/licenses/artistic-license.php

  Bixoft Public License A proposal for an Open Source license that clearly distinguishes between software programs and programming tools. http://www.bixoft.nl/english/license.htm

  BSD: 4.4BSD Copyright License for 4.4BSD. http://www.freebsd.org/copyright/license.html

  BSD: FreeBSD Copyright License for FreeBSD operating system. http://www.freebsd.org/copyright/freebsd-license.html

  BSD: NetBSD Licensing and Redistribution License patterned after FreeBSD Copyright. http://www.netbsd.org/about/redistribution.html

  BSD: OpenBSD Copyright Policy License and background on Berkeley Computer Systems Research Group copyrights. http://www.openbsd.org/policy.html

  Christian Software Public License (CSPL) Christianized variant of BSD license. http://www.geocities.com/ResearchTriangle/Node/4081/cspl.html

  Creative Commons A non-profit that offers an alternative to full copyright. Offering work under a Creative Commons license does not mean giving up copyright. It means offering some of an author's rights to any taker, and only on certain conditions. http://creativecommons.org/

  Debian Social Contract License for Debian GNU/Linux. http://www.debian.org/social_contract.html

  E Licenses Mozilla or Mozilla compatible, for E programming language. http://www.erights.org/download/licenses.html

  eCos License Overview Summary of license for Red Hat eCos operating system. http://ecos.sourceware.org/license-overview.html

  Eiffel: ISE Free Eiffel Library License (IFELL) For the EiffelBase library. http://archive.eiffel.com/products/base/license.html

  Freshmeat Listings of browseable licenses and articles. http://freshmeat.net/browse/13/?topic_id=13

  GNU Free Documentation License A version of the GPL for reference material. http://www.gnu.org/copyleft/fdl.html

  GNU General Public License (GPL) One standard for licensing free software. http://www.gnu.org/copyleft/gpl.html

  GNU Lesser General Public License (LGPL) Formerly: GNU Library GPL. http://www.gnu.org/copyleft/lgpl.html

  GNU: List of Licenses Various licenses and comments about them. http://www.gnu.org/philosophy/license-list.html

  IBM - Common Public License (CPL) Open source software license. http://www-128.ibm.com/developerworks/opensource/

  LaTeX Project Public License Particularly suited for TeX-related programs. http://www.latex-project.org/lppl/

  Liberal Source Software (LSS) Hybrid licensing model, between free and commercial software licenses. http://www.vitanuova.com/inferno/liblicence.txt

  License information for Xinu software License for the XINU operating system http://www.cs.purdue.edu/homes/dec/xlicense.html

  Lua Copyright notice From Brazil, programming language framework. http://www.lua.org/copyright.html

  Lucent Technologies, Inc. Plan 9 Open Source license agreement http://plan9.bell-labs.com/plan9/license.html

  Mozart License Agreement Mozart: an implementation of Oz 3 programming language. http://www.mozart-oz.org/LICENSE.html

  Mozilla and Netscape Public Licenses Describes the licensing policy of the Mozilla Foundation, with the full texts of the various licenses, and FAQs. http://www.mozilla.org/MPL/

  Mozilla Public License Version 1.0 Follows the Debian Free Software guidelines. http://www.mozilla.org/MPL/MPL-1.0.html

  MySQL Complex hybrid license: public domain, GPL, LGPL, Open Source, commercial. http://www.mysql.com/company/legal/licensing/

  Open Group Public License Open Motif Graphical GUI Software, Public End User License. http://www.opengroup.org/openmotif/license/

  Open Source Initiative - Licenses Copies of licenses approved by the Open Source Initiative. http://www.opensource.org/licenses/

  OpenSource.org: Open Source Definition Not a license itself, but a definition of what conditions a license must fulfill in order to be termed an Open Source license. http://www.opensource.org/docs/osd

  PHP Licence Information Covers licensing issues for developers distributing applications in PHP. Includes links to annotated version of the relevant licenses and other related resources. http://www.php.net/license/

  Quick Reference Guide A chart comparing attributes of major licenses, including the option to select your bias. http://pgl.yoyo.org/lqr/

  RTEMS License Information RTEMS open source real-time operating system uses GNU Public License (GPL), except for some special, very limited exceptions. http://www.rtems.com/license/index.html

  Ruby License Dual terms: use GPL terms or its own terms. http://www.ruby-lang.org/en/LICENSE.txt

  Squeak License License for the Squeak software suite, mainly provided by Apple. http://squeak.org/SqueakLicense/

  Trolltech: Q Public License (QPL) License for the Qt Free Edition. http://www.trolltech.com/products/qt/licenses/licensing/qpl

  Understanding Open Source and Free Software Licensing Full text of the book by Andrew M. St. Laurent. [PDF] http://www.oreilly.com/catalog/osfreesoft/book/

  Vita Nuova Inferno Subscription License Fee based, partly open source, for Lucent network OS. http://www.vitanuova.com/inferno/licence.html

  W3C IPR Software Notice W3C = World Wide Web Consortium, one of the Internet's main standard-setting bodies. http://www.w3.org/Consortium/Legal/copyright-software-19980720

  x-kernel Copyright Notice Arizona Board of Regents, University of Arizona. http://www.cs.arizona.edu/projects/xkernel/copyright.html

  Zope Public License (ZPL) Patterned after Apache license. http://www.zope.org/Resources/License/