Mmmmm after looking at the links Saucepan Man provided I'm completely outraged. I don't really like Harry Potter, but I certainly don't think it should be banned for "promoting black magic" if anything it does quite the opposite. HP and LOTR are both books that show the fight against evil.
On the last link was an article all about LOTR and HP glorifying Satan and bringing people away from God.
Tolkien was a devout Catholic. I don't think he was trying to lead people to Satan. I don't think he's led people to Satan.
Either the people who are banning these books have never read them or they have completely missed the point.
Grrr, this all makes me so angry.