Open Source & Derivative Works
WordPress & the GPL
ProCD v. Zeidenberg
USL v. BSDi
Shrink Wrap License
MS Community License
MS Permissive License
Public domain refers to those works (including software) where there is no copyright or proprietary interest in the work, either because the copyright has expired, because of the operation of law, or because the rights holder(s) chose to place their work into the public domain (the last of which may not be possible in some jurisdictions). As a result of being in the public domain, there are very few if any restrictions on how the work may be used or distributed by others.
For authors who wish to allow free use of their works, an alternative to placing them in the public domain is to use a permissive license. This allows very broad usage of the work while allowing the copyright-holder to include a disclaimer of warranties and require attribution if he wishes.
Please note that even if something does not contain a copyright notice, you can not simply assume it is public domain. In most countries, it is not necessary for something to contain a copyright notice in order to be copyrighted. In the United States, a copyright notice has not been necessary since the 1976 Copyright Act took effect.
Please also note that the phrase "public domain" is also sometimes used, generally informally (but even in some court cases) to refer to works or information that is public knowledge and/or widely available. When used in this manner, the phrase does not mean that no copyrights or other proprietary interests apply.
Train For Linux
Online Linux Training Site. A Membership Site With A Mix Of Video And Other Training Materials. Membership Never Expires!
This site is for general information only, and represents the opinions of the authors only. This site was NOT written, NOR reviewed, NOR vetted by lawyers. The content of this site is NOT intended as, NOR should be construed as, legal or professional advice. You should consult a lawyer, if you need a legal opinion or advice on any legal matter.
Copyright © 2007-2017, Answers 2000 Limited
CERTAIN CONTENT THAT APPEARS ON THIS SITE COMES FROM AMAZON SERVICES LLC. THIS CONTENT IS PROVIDED 'AS IS' AND IS SUBJECT TO CHANGE OR REMOVAL AT ANY TIME.
CERTAIN CONTENT THAT APPEARS ON THIS SITE,COMES FROM AMAZON EU S.à r.l. THIS CONTENT IS PROVIDED 'AS IS' AND IS SUBJECT TO CHANGE OR REMOVAL AT ANY TIME.
Disclosure: Our company's websites' content (including this website's content) includes advertisements for our own company's websites, products, and services, and for other organization's websites, products, and services. In the case of links to other organization's websites, our company may receive a payment, (1) if you purchase products or services, or (2) if you sign-up for third party offers, after following links from this website. Unless specifically otherwise stated, information about other organization's products and services, is based on information provided by that organization, the product/service vendor, and/or publicly available information - and should not be taken to mean that we have used the product/service in question. Additionally, our company's websites contain some adverts which we are paid to display, but whose content is not selected by us, such as Google AdSense ads. For more detailed information, please see Advertising/Endorsements Disclosures
In Association With Amazon.com
Answers 2000 Limited is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com.
In Association With Amazon.co.uk
Answers 2000 Limited is a participant in the Amazon EU Associates Programme, an affiliate advertising programme designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.co.uk.
All trademarks are property of their respective owners.
All third party content and adverts are copyright of their respective owners.