There is a new teleread post,
the ultimate anti-piracy weapon, which makes the related point that legal ebooks, when available, are already much easier to find than pirated ones. Jerry Pournelle has often said: "what's important to me is that if someone seeks an electronic copy of a copyrighted work, the first hit from the search engines ought to be a legitimate copy offered for sale, not a pirate edition for free". This currently seems to be the case, when there is a legal ebook.