Who doesn't know this blog? HUGE list of awesome spells, monsters, deities and items, updated daily. My favorite source of magic. Bat is doing really good job, probably even the best job in a whole fucking OSR community. We all should learn from him.
PS. I will repeat one sentence that I've used in my Bandits & Basilisks mini-game: I ENCOURAGE YOU TO DROP ALL "CLASSIC" MAGICAL SPELLS AND SWITCH TO HIS SET OF MAGIC.