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

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. http://www.stromian.com/Open_Source_Licensing.htm

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

Apple/Disney: Squeak license Project and license ran unchanged and uninterrupted even during transition to different corporation. http://squeak.org/license.html

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

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

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

Netscape: Mozilla Public License (MozPL) version 1.0 Follows the Debian Free Software guidelines. http://www.mozilla.org/NPL/MPL-1.0.html

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/osd.html

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

Netscape Public License (NPL) The NPL is similar to the Mozilla Public License. http://www.mozilla.org/NPL/NPL-1.0.html

Python Copyright Open source compliant, but not fully GPL compatible, the only incompatibility is inclusion of a choice-of-law clause. http://www.python.org/doc/Copyright.html

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

eCos License Overview Summary of license for Red Hat eCos operating system. http://sources.redhat.com/ecos/license-overview.html

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

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

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

Apache Server License Also in the source code. http://www.apache.org/LICENSE.txt