Innovative content licensing seems to be catching on — even beyond the efforts of Creative Commons.

Prentince Hall PTR recently announced that they’ll publish a series of technical books under open-content licenses. Read the Slashdot story.

Kudos to Bruce Perens for brokering the move, and to Prentice Hall for joining O’Reilly and Associaties in the elite club of enlightened commercial publishers.

(You’ll recall that the O’Reilly folks recently adopted our Founder’s Copyright, under which they’ll release certain copyrights into the public domain after 14 years, with an option to renew for another 14 — just as the Framers’ of the U.S. Constitution would have had it.)