Daphne du Maurier's stories seem to be getting a good representation in these lists. For those who find a spooky story just as good as a spooky movie, you could try seeking out the original short stories of
The Birds and
Don't Look Now by du Maurier (or any of her work). Those last few paragraphs of
Don't Look Now...
Drag Me To Hell was such a hoot. Love it.
The Ring (US remake) was the scariest thing I ever saw in a cinema as an adult. Samara may as well have been crawling out of the cinema screen.