If you don't know much, there is always our main sites, given by the poster above me, and then you'll know a lot!
Satanism is constant learning, but in order to differentiate truth from lies from other sources, you must build upon stone per se and read everything on the JoS, the Exposing Christianity, then
666blacksun.com and the three sites....then join the JoS news letter (strictly sermons from our High Priests).
Then you can browse the groups, use the search function and type in certain topics to see if they have been covered, I would also reccomend saving posts, replies and sermons you like so you can pull them up quick and easily....
this is what I did and if it sounds like a lot, then go at your own pace, but trust me, the more you get into it, the more you'll want to read and learn. Learning nothing but the Truth is a beautiful experience that will lead to inner Satanic awakenings. Many people feel epic when gazing upon Ancient Wonders, so understanding them in full is a whole other feeling...committing to and evolving in them... Its Glorious