SOLDIERX.COM Nobody Can Stop Information Insemination

Does anyone know a good book or site that has sql tutorials. I have fucking SQL in college, and I must say, it blows the big one. My little brain is having trouble understanding subqueries. The current book is Murachs SQL which blows, and I have bought 2 other books. Still not sinking in. The teacher teaches from the book, so they too, are no help. Any assistance will be greatly appreciated.