In response to the RIAA's suits, users who want to share music files are adopting tools like WINW and BadBlue, that allow them to create encrypted spaces where they can share files and converse with one another. As a result, all their communications in these spaces, even messages with no more commercial content than "BRITN3Y SUX!!!1!" are hidden from prying eyes. This is not because such messages are sensitive, but rather because once a user starts encrypting messages and files, it's often easier to encrypt everything than to pick and choose. Note that the broadening adoption of encryption is not because users have become libertarians, but because they have become criminals; to a first approximation, every PC owner under the age of 35 is now a felon.
Another great essay by Clay Shirky, linked via vigilant.tv.
The RIAA makes everyone a cypherpunk