Not other *core, but grindcore like Terrorizer, Carcass, Napalm Death, Repulsion, Brutal Truth, Pathologist, Carbonized, etc.

Anyone have anything mind-blowing?

I'd like to know all the historically important bands and all current bands that aren't "kiddie projects" that will evaporate in six months' time anyway.

I have a whole damn thread for you to look through

viewtopic.php?f=11&t=48969

it's at the top of the damn page. perhaps look before starting one asking for exactly what is being discussed there.

I bet this will be moved in no time to the Grindcore Rec. Thread, but here is some grindcore I like that should keep you occupied for a while. Some of these are also death/grind.
Nasum
Birdflesh
Gadget
Looking for an Answer
Nashgul
Scumfusion
Feastem
Gridlink
Discordance Axis
Cyaegha
Alien Crucifixion
Ingrowing
Melancholy Pessimism
The Killing
Suffering Mind
Hatebeak
Phobia
P.L.F.
Rehumanize
Six Brew Bantha

Thanks! Very useful. This isn't really a recommendations thread, since we're looking for a canonical list and not band-of-the-week, or I would have posted it there.