Viral License

Viral license is a copyright license that allows derivative works only when licensed under a compatible license to the original. Licenses that require derivative works to be licensed only under compatible licenses include copyleft licenses which include several common open source and free content licenses, such as the GNU General Public License (GPL) and the Creative Commons Attribution-ShareAlike license.

Read more about Viral License:  Scope, History, Criticism of The Term, Interoperability

Famous quotes containing the word license:

    “My attitude toward punctuation is that it ought to be as conventional as possible. The game of golf would lose a good deal if croquet mallets and billiard cues were allowed on the putting green. You ought to be able to show that you can do it a good deal better than anyone else with the regular tools before you have a license to bring in your own improvements.”
    —Ernest Hemingway (1899–1961)