Demilich's Nepsithe album is offered by the band free, due to the fact that they've never received a penny from their label for it. So this is their backlash:
Demilich - Download
Rather cool death metal. And I'm not huge on death metal.
If you're into things like Sunn O))), Aardtmann op Vuurtopberg may be up your alley:
aardtmann.tk
They've got their demos and such up for free grabs.
For thrash fans... if you like Metallica, Megadeth, early Anthrax and Testament, you cannot ignore Heathen. They've put their first two albums and their new demo up on their site, and they kick large amounts of ass:
The Official HEATHEN Website!
Another death metal band, Carcariass. If you like Death around their Human album, you'll enjoy this. If not, it's good and should be downloaded anyways:
http://www.carcariass.com/disco.html
Zaraza's Slavic Blasphemy is good for those who enjoy more of an industrial edge in their metal:
Internet Archive: Details: ZARAZA "Slavic Blasphemy"
Keep in mind, though, that this is more Godflesh than Ministry.
Gnaw Their Tongues is a bit... odd, very noisy, but I enjoy them:
Internet Archive: Details: bubonic burial rites Internet Archive: Details: gnaw their tongues vomiting helplessly promo Internet Archive: Details: gnaw their tongues - issei sagawa ep 2007
Since you're all a bunch of weeaboos here anyways:
ninjamagic.tk
Yes, a power/thrash band with songs about ninjas. I'm not going to comment further.
Amboog-A-Lard: These guys are cool. Just download this. Note that one of their guitarists left to join Marilyn Manson (blech), where he became known as Twiggy Ramirez.
MEDIA
Another experimental group with tinges of black metal (only tinges, mind you):
Nauthisuruz
Umbah has some real quality industrial metal (this time more Ministry than Godflesh), and something like ten albums for free download:
Index of /cybergrind/mp3z
Dimaension X may by up some of your guys' alleys:
Music page of Dimaension X - I Am Become Daevel - MP3 music page on SoundClick
For people who need a healthy dose of dirty, gritty THRASH METAL, Nailgunner.
nailgunner.net
Machinae Supremacy is a band ITG players should know, and everyone else SHOULD know. Their site has gone through some weird overhauls, but I managed to locate their downloadable material here:
Machinae Supremacy
And then, of course, there's my favorite free album download... DARKSPACE. Well, their Darkspace -1 demo, anyways.
Darkcyberspace - Transmission failed
BUT UNFORTUNATELY, it looks like they're rebuilding their site, so it may take some time before you can download the demo. And by "demo," I mean 45 minutes of ambient black metal.
I may come back and post more later.