Woody Guthrie used an anti-copyright notice on his songs:
This song is Copyrighted in U.S., under Seal of Copyright # 154085, for a period of 28 years, and anybody caught singin it without our permission, will be mighty good friends of ourn, cause we don’t give a dern. Publish it. Write it. Sing it. Swing to it. Yodel it. We wrote it, that’s all we wanted to do.
By using this website you agree that [Humans] make their own history, but they do not make it as they please; they do not make it under self-selected circumstances, but under circumstances existing already, given and transmitted from the past. The tradition of all the dead generations weighs like a nightmare on the brains of the living.
From the river to the sea, Palestine will be free.