This Blog and Creative Commons
3 September 2008
Under U.S. copyright law, this blog has always been copyrighted. That said, I never mind people using my material, as long as I’m credited. I decided to formalize it — and simplify (more accurately, eliminate) most permission questions — by adding an explicit Creative Commons license to this blog.
https://www.cs.columbia.edu/~smb/blog/2008-09/2008-09-03.html
