YouTube is full of paranormal series like these. Here's a few channels you might like following:
NQGhosthunter : Ken Goldstein is a professional photographER that "began to experience paranormal occurances at work that followed him home". Some very scary videos but he has many haters... whole pages that debunk and hate on him... that now he only posts a couple times a month... if that. Not a series, per se, but all videos are well done and in a neat chronological order.
ThePoltergeistDiaries Holly and Mason lived together and are plagued by a terrifying and dangerious entity that followed Mason from his old house. Ongoing and so well done that Hollywood should stand up and take notice. Followers actually beg for the next installment. This is the only REAL "fake" series that I've ever seen. Of course it's not real... but Mason has never conceded that fact... and it seems many people take that as an admission of it's truth. Has a Facebook following for himself, Holly and his YouTube channel.
MellowB1rd Gets hated on more than NQ. A few random videos of poltergeist activity so well done that many people still believe in it's authenticity.
The Haunting of Sunshine Girl Network I don't follow or watch this series but thousands of others do. She has her own website, Facebook and Twitter accounts. I've seen a few but the acting can be cheesy at times. She basically a YouTube paranormal superstar.
I'm sure there's even more than this... like the link the OP provided... which I'm sure I will enjoy as much as some of the others.