[Poser]

"Need help with two acronymns: JMAD and MOAB."

JDAM- Damned big bomb (2000 pounds?)
MOAB - Mother of All Bombs (20000 pounds?)

[abnegation]

Nice pic on Boeing site of the JDAM.
http://www.boeing.com/defense-space/missiles/jdam/flash.html

[Bryan24]

JDAM = Joint Direct Attack Munition

It comes in 500 lb, 750 lb, 1000 lb and 2000 lb versions. Essentially anything with JDAM means it uses a GPS guidance system during free-fall. Accurate to within 10 feet or so.

MOAB = Massive Ordnance Air Burst

Was developed to replace the 15,000 lb. "daisy-cutter" used in Vietnam and a few times in Desert Storm and Afghanistan. The MOAB is 21,000 lbs. It can be delivered by C-130 and C-17.

There is a report in Aviation Week that it will fit in the B-2 bomb bay and can be carried by the B-2