I've been into Clutch, and Melvins for as long as I've been into rock, but I'm really starting to discover more bands recently.
Unida, Sleep, Kyuss, Gammera, Pelican, Skullflower, a few more I cant think of off the top of my head.
I recently went to
www.cosmicdoom.com and have been listening to the radio station they have. There's some really good music there in case you're interested.
How many people here are also into this genre, and do you have any suggestions as to who I should check out?