Well, I'm no expert in debinding manga, actually I have no clue since I've never done it, but I found this nice youtube video on how you can get the glue off using a....... hairdryer!
Yeah, its funky but it thought it was a better method than going in with the iron or the microwave. At least you wont be looked at as if you're insane by your family members or dorm neighbors. You can kinda pretend you are blow drying your hair^^. XD ---Okay, yes, i know, I've gone on a tangent.
If anyone catches any other good debinding tutorials, post them here!
The hairdryer method: http://www.youtube.com/watch?v=BP-wRBfObqc