Buddy TV
From Super-wiki
Buddy TV was a fan-centric media site covering TV and movies which closed down in May 2018.
It had a very active Supernatural section featuring episode recaps, show related news and interviews with cast and crew.
There was also a fan forum which could be found here and there are other interactive activities including polls and quizzes.
It also bought out and ran Supernatural.tv which was originally a fansite.