Encyclopaedia Metallum
While this is a great resource as many have said, god were the forums such a fucking groupthinking, insular scene. The same goes for being so particular about what is metal and what isn't, with long debates (at the time) for who was tr00 or kvlt or not with mods who were on a powertrip.A good reminder of how bad forums were and how there were things about them that were better than the current web, it's not like it was all perfect.