Their website is Kabbalah.info.
I distinguish the mystical Qabalah from the let's say, authentic Kabbalah. And in this post, I will focus on the latter one.
Suiting my level of Understanding, the mystical Qabalah gave me a lot, but it was or is the "authentic" tradition that helped me the most. I was guided to it by my spirits and I am grateful for it.
For me, the text "There is none else besides Him" (you can find it here >>) is, after the Crossing of the Abyss, more relevant than ever.
The text deals with the whole methodology of Kabbalah, in detail. There is nothing else one must know to master the Authentic Kabbalah, in my opinion. I could go on and on about the implications of the message in the text, but I will let the videos below speak for themselves.
In the series of the "Kabbalah revealed", there are two parts, and I invite you to watch and then re-watch them both for many many many many many many many many times.
Here we go, part one: