What we lost

Just to recall that we had a free, generic, distributed and simple file exchange framework with a broad user basis for exchange of documents, pictures, music and video. Namely Napster, eDonkey and co. It is all gone now due to the greed of the big music labels, only on the basis that some files for which they had licenses for were shared on those networks. Think about it the next time you buy something from them and when you are searching a rare old track that you cannot buy nowhere nowadays. Napster and co would likely have solved your problem.