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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.
- Against DRM 2.0
A free copyleft license for artworks, which forbids DRM. Includes licence text, FAQ, and a few translations.
- Aladdin Free Public License (AFPL)
For Ghostscript, by Aladdin Enterprises.
- Amoeba copyright notice
A free software OS.
- Amulet License Agreement
CMU Amulet Toolkit License Agreement.
- Apache Server Licenses
Overview of the different versions of the Apache licenses.
- Apple: Apple Public Source License (APSL)
Apple's license for software released as source code.
- The Artistic License
Perl package license.
- Bixoft Public License
A proposal for an Open Source license that clearly distinguishes between software programs and programming tools.
- BSD: 4.4BSD Copyright
License for 4.4BSD.
- BSD: FreeBSD Copyright
License for FreeBSD operating system.
- BSD: NetBSD Licensing and Redistribution
License patterned after FreeBSD Copyright.
- BSD: OpenBSD Copyright Policy
License and background on Berkeley Computer Systems Research Group copyrights.
- Christian Software Public License (CSPL)
Christianized variant of BSD license.
- 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.
- Debian Social Contract
License for Debian GNU/Linux.
- E Licenses
Mozilla or Mozilla compatible, for E programming language.
- eCos License Overview
Summary of license for Red Hat eCos operating system.
- Eiffel: ISE Free Eiffel Library License (IFELL)
For the EiffelBase library.
- Freshmeat
Listings of browseable licenses and articles.
- GNU Free Documentation License
A version of the GPL for reference material.
- GNU General Public License (GPL)
One standard for licensing free software.
- GNU Lesser General Public License (LGPL)
Formerly: GNU Library GPL.
- GNU: List of Licenses
Various licenses and comments about them.
- IBM - Common Public License (CPL)
Open source software license.
- LaTeX Project Public License
Particularly suited for TeX-related programs.
- Liberal Source Software (LSS)
Hybrid licensing model, between free and commercial software licenses.
- License information for Xinu software
License for the XINU operating system
- Lua Copyright notice
From Brazil, programming language framework.
- Lucent Technologies, Inc.
Plan 9 Open Source license agreement
- Mozart License Agreement
Mozart: an implementation of Oz 3 programming language.
- Mozilla and Netscape Public Licenses
Describes the licensing policy of the Mozilla Foundation, with the full texts of the various licenses, and FAQs.
- Mozilla Public License Version 1.0
Follows the Debian Free Software guidelines.
- MySQL
Complex hybrid license: public domain, GPL, LGPL, Open Source, commercial.
- Open Group Public License
Open Motif Graphical GUI Software, Public End User License.
- Open Source Initiative - Licenses
Copies of licenses approved by the Open Source Initiative.
- 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.
- 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.
- Quick Reference Guide
A chart comparing attributes of major licenses, including the option to select your bias.
- RTEMS License Information
RTEMS open source real-time operating system uses GNU Public License (GPL), except for some special, very limited exceptions.
- Ruby License
Dual terms: use GPL terms or its own terms.
- Squeak License
License for the Squeak software suite, mainly provided by Apple.
- Trolltech: Q Public License (QPL)
License for the Qt Free Edition.
- Understanding Open Source and Free Software Licensing
Full text of the book by Andrew M. St. Laurent. [PDF]
- Vita Nuova Inferno Subscription License
Fee based, partly open source, for Lucent network OS.
- W3C IPR Software Notice
W3C = World Wide Web Consortium, one of the Internet's main standard-setting bodies.
- x-kernel Copyright Notice
Arizona Board of Regents, University of Arizona.
- Zope Public License (ZPL)
Patterned after Apache license.
