I mostly listen to music that is under the extreme metal umbrella (post-hardcore, mathcore, grindcore, black metal, post-metal, metal-core, death metal, sludge, doom), so pretty heavy I'd say.
For example the last five albums I bought were by Terrorizer, Godflesh, Neurosis, Din Of Celestial Birds and Greg Puciato.
I'm not sure if today is a Bandcamp Friday or not, but I'm planning on buying albums by Cave In, Botch and The Armed