from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A form of licensing that encourages the distribution of software at no charge for noncommercial uses.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The philosophy of using copyrights to enforce freedom of information, especially software source code.
- n. A software license that follows this philosophy.
- v. To license under a copyleft license.
The Copyleft Foundation, which initiates its course this coming month of October year 2006, issues a formal invitation to participate to all those interested in copyleft and who form a part of the chain of assessment of the arts, culture an science as well as individuals and associative companies.
The GPL is called a copyleft license, which is wordplay on copyright.
A concept in competition with the idea of copyleft is the "non-commercial" license, which attempts to restrict the use of a work for "commercial" purposes.
"copyleft" - software licenses that not only allow copying, but require it.
It is radical because previous attempts have tried to build on the evident success of the GNU GPL by taking a kind of copyleft approach: using copyright to limit copyright.
Do you own the copyright, and if so would you be willing to give a general "copyleft" or other no-royalty license?
IP practitioners frequently complain about the academythe "copyleft" as they are found sic of saying.
This License is a kind of "copyleft," which means that derivative works of the document must themselves be free in the same sense.
This approach, known as "copyleft", as opposed to copyright, languished in obscurity until the internet made it easier for far-flung groups of developers to collaborate-which led to an explosion of open-source activity.
As a musician, and as an entrepreneur making my living selling equipment to studios and musicians, I obviously have a great deal to lose if the putative forces of "copyleft" somehow succeed in preventing music being paid for.
Wordnik is becoming a not-for-profit! Read our announcement here.