Watched the entirety of Marble Hornets over the past week. It's a web series that focuses on Slenderman, a pseudo-folkloric boogeyman-like figure that was created on the internet some years back. Bluntly put, it's one of the best things I've ever watched. While initially the series is carried by the novelty of the Slenderman mythos (which the series is largely responsible for developing) and savvy use of YouTube as a publishing platform (think Blair Witch Project for the internet generation), it eventually evolves into an engaging psychological thriller with supernatural elements. While some of the acting midway through the series is a bit shakey, the actor who plays Tim (real name Tim Sutton) is absolutely superb and carries the series to new heights across the last 30 or so episodes.
It's a unique project and I'm sad the series is over, but surely I'll come back to it sometime in the future.
Here you can find all of the main entries into the series:
https://www.youtube.com/user/MarbleHornets/videos