Licenses

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/