Dean says, "Awesome. Six degrees of heaven bacon." He is referring to the game based on the premise that any two people on Earth are separated by no more than 6 acquaintances from each other. In Six Degrees of Kevin Bacon, players compete to find the shortest number of links between the role of any actor and those of Kevin Bacon who is a very busy actor.
The episode in which Jensen Ackles first appears in Dawson's Creek is also called The Song Remains the Same (2002) (Season 6, episode 2).
Dean says, "So she's gone all Glenn Close?" He is referring to the actress's role as a psychotic spurned lover in the thriller Fatal Attraction (1987).
First appearance of Michael in a vessel.