I think we need to understand that (good) knowledge is power, that power is rivalrous (not everyone can have it) and therefore that those who have knowledge will not freely spread it around, but sequester it, if not hide it altogether, and impart it only in trade or under duress. Instead of good knowledge, those who have no power and nothing to trade (most of us) will get secrecy, obfuscation, misdirection, propaganda, and lies. That is what is purveyed by the government, by most businesses, and the boss media. It is hardly surprising that, with the Internet at hand, ordinary citizens are getting into the act for fun and profit. Discovering ways to obtain, publish and protect good knowledge is an important task. The present scene contains few examples of it.