Very good blog article in the Bookseller, entitled: Wikicide.
Some interesting reflections on the madness of cheapening knowledge, culture and lore under the false pretence of "free to all". We've seen already the consequences of book devaluation – nobody wants to pay for books and newspapers any more, if they can help it, in the same way as people don't want to pay for music if they can download it for free. It doesn't matter if copyright is infringed or the quality is not the same: you don't look a gifted horse in the mouth.
Wikipedia is now the fifth most visited site in the world, apparently. That's pretty valuable in advertising terms, and I wouldn't be surprised, either, if they were to start charging people to access the information one day in the not too distant future . . .