Thanks for the answers!
DixieGal - Thank you, good to know.
Pshrynk - You have to assess each site for yourself and decide if they are legal or not. I do try to be sure they're all legal. They all look fine to me or I wouldn't link to them. But I give you the sites to assess for yourself. One thing - a lot of illegal download sites have copyright statements as if they're legit and I have known people fooled by them. A statement of copyright is not assurance that a site is offering legal downloads. So you have to have some idea of what you're looking for - who has the right to distribute the book?
desertgrandma - "I repeat, EVERY book download has this caution before the link." Every book? Every single book? What are you talking about? Why are you paranoid? My agenda was to ask about how you know a download site is legal, particularly in light of the fact that copyright notices may be bogus, and if a person cares one way or the other. And to hopefully get some real responses. In other words - lose the dust colored glasses and read what it says. It's not complicated.
UncleDuke - What are you talking about? You don't make a lot of sense.