According to a leaked report (see here and here; CHT Brandon), the Campaign for Libertys upcoming internet freedom manifesto condemns as an insidious and pernicious form of internet collectivism the view that what is considered to be in the public domain should be greatly expanded. Bizarrely, they toss opposition into IP into a list of proposals for government intervention.
Hey, C4L: refraining from censorship and protectionism is not a form of government intervention. For the libertarian case against IP, check out the Center for the Study of Innovative Freedom and the Molinari Institutes anti-copyright page.