Village of the Damned. The 1960 original. Creepy kids are always creepy.

I'll also admit that "found footage" films like Paranormal Activity (the first one) and The Fourth Kind freaks me out way more than it really should.

There's also a surprising amount of good horror writing on the internet. And I'm not just talking about "creepypasta", or if I am, I mean the really really good kind. The SCP Foundation for instance is a collaborative horror writing site with a few really good stories sprinkled among the more mediocre efforts. I'm not generally affected by horror writing, but some of them are downright spine-chilling.