It's the Day's Day of Days! Because Grove's Dictionary of Music and Musicians.
"Yep, once I realized that everybody that I disagreed with was part of a sinister conspiracy, it was easy to only a tiny handful of websites tell the truth, and limit my reading to them! And they've taught me so much! Like do you realize that crystal meth actually has no ill effects! Another plot by the Zionist Occupation Government to oppress the small white businessman!"