Another site warranting mention in any discussion of music lists is a true curio, Digital Dream Door. Its name, 1990's-style design, and neglected features need not distract us too much from its music lists. We know nothing about how they were compiled other than vague, grammatically-challenged notes like the following at the list of the 100 Greatest Rock Albums (actually 200): "These Albums were chosen for their Popularity, Influence, and Musical Impact." So, I suppose these guys are trying to give Barack "Espionage Act" Obama a run for his money at being transparent. However, looking at the list closely, especially as one gets down near 200, you can tell they're doing some research of sales charts and critics' lists. You'll also want to peruse the rest of their Music Lists.