Greetings,
Matthias Kirschner wrote an interesting article[1] -- passing criticism of "Intellectual Property", about correct usage of confusing terms.
Also, there is Free Software Daily's article[2] linking to original one. Be free to vote it up!
[1] http://blogs.fsfe.org/mk/?p=612 [2] http://www.fsdaily.com/Philosophy/GOLEMs_are_better_than_Intellectual_Proper...