There is an interesting article in the Wallstreet Journal titled, Taming the Internet frontier. The article looks at the Legal changing face of the Internet, including copyright, sales taxes, among others. The freewheeling days of the Internet are ending according to the article which mentions the demand for rules and copyright.
The article also mentions Prof. Laurence Lessig (from Stanford Law School) views that digital technology actually can make it easier for copyright holders to block unauthorized users.