Thing1 sent me this list from IGN. Some are actually very scary movies. Some, like Gremblins, don't belong on this list. I would have not had The Shining as #1. It was kind of scary but not that scary. I preferred the TV version with Stephen Weber myself.
My #1 would have been The Exorcist. That movie scared the, you know, out of me. Still does.
IMDB has a poll going on. Jaws is on it? Great thriller but not a horror movie.