I have not posted in this thread yet, but all I have to add is, that some of the more unknown bands are the best. I do like a lot of the better known bands, too (ie DsO, Drudkh, Graveland, all the Norwegian second wave bands, etc.). Extremely unknown bands that I really like: Legion of Darkness, Hegemon, Inchiuvatu, Art Inferno, Inthyflesh, Amok Vedar, Burial Hordes, Tavaron, etc. There is a lot of great unknown black metal coming from southern Europe in particular.