Dear 100 Hour Board,
In regards to Board Question #45148, belting is a combination of head and chest voice. It is as if you're exaggerating your speaking voice, if that makes sense. Be sure to not sing fully in chest, though, as that can injure your voice. You want to make sure you properly warm up your lower register, though, perhaps by also singing/shouting "TAXI" on set notes, starting low and ascending up the scale before you switch into complete head voice. There are many different exercises, of course, but that one just comes to mind.
I don't know if any of that made sense, but I hope it does. I've been singing for years and just finished an intermediate voice class at my college where we spent a month concentrating on belting.
You may also be interested in this website:
It has several articles about vocal technique and such.