When you think about what Void is, it makes a certain sense that there's Nothing much to read about it.
Seriously though, Void is nothingness. The primary thing that I've found it useful for is drawing things in. Pulling, crushing, consuming, unmaking... these are traits of the void.
Consider the number Zero, and the strange traits that it possesses in Mathematics. Any number, if multiplied by Zero, equals Zero. Any number, if divided by Zero... well, High School Mathematics will tell you that it's undefined, and you can't do that. The short version of the higher math answer is that dividing by Zero equals Infinity -- and that Zero and Infinity are Reciprocals. In other words, Zero * Infinity = 1.
Some food for thought.