Bouncing Off the Moon — David Gerrold

Charles thought the Moon would be a new beginning. Now, he knows he'll be lucky just to stay alive.

Having escaped both an Earth on the verge of global collapse and their squabbling parents in a "divorce" at Geosynchronous Station, a newly independent Charles "Chigger" Dingillian and his two brothers find themselves alone on the Moon with very few prospects.

Worse, they are being hunted by ruthless interplanetary corporations who would stop at nothing to come in possession of a memory bar the boys smuggled on board.

Totally unsure of who they can trust -- if anyone -- the three boys must find a way to make it on their own in unfamiliar territory. Only one thing is certain: The Moon is not a safe place to be.