Last year, I told a colleague that I would include Internet ethics in a course that I was teaching. She suggested that I read a recently published anthology on computer ethics — and attached the entire volume to the email.

Should I have refused to read a pirated book? Was I receiving stolen goods, as advocates of stricter laws against Internet piracy claim?

If I steal someone's book the old-fashioned way, I have the book, and the original owner no longer does. I am better off, but she is worse off. When people use pirated books, the publisher and the author often are worse off — they lose earnings from selling the book.