In the New Yorker. A long but great article.
The irony is that as copyright law becomes stronger it becomes weaker because everyone feels more justified in ignoring it. One source says there were 40 BILLION copies and downloads per year on the internet a few years back and that 94% of them were blatant violations of copyright law.
If there were a simple and cheap way pay to use prior art I would use the service. But there isn't. There once was, but there isn't now.
By the way, some claim that my use of the hyperlink in the first line is also a violation of copyright, since I am using someone else's work without payment or permission.