sarawrs mentioned random connections. I'd been noting them as I read, so I thought I'd point out some of my favorites.

On page 515, Eric masturbates to a picture of Jayne Mansfield. This is the same actress that inspires Acey's collection (discussed on page 474 and 484)-- "you have copycat Jayne, the reproduced goddess, and she is all the more strong for being unoriginal" (490). A picture:
http://en.wikipedia.org/wiki/Image:Jaynemansfield5.jpg

On page 673, Father Paulus refers to a painting by Breugel called "Children's Games." Albert talks about the painting with Klara when he gets home: "I don't know what art history says about this painting. But I say it's not that different from the other famous Bruegel, armies of death marching across the landscape. The children are fat, backward, a little sinister to me" (682). Breugel is the same artist that painted "The Triumph of Death," the painting that Hoover was so obsessed with. A picture:
http://commons.wikimedia.org/wiki/Image:Children.jpg

On page 465, Matt reminisces about his years in a quonset hut in Vietnam, where someone hung a picture of Nixon with two ball players, who he later learned were Thompson and Branca. A character had this same photo in his office, but I can't find the right page...

And, although condoms are pretty widely used, they are mentioned in a number of scenes with different characters: Lenny uses one in his comedy show, a young Nick tells his friend that all he has in his wallet is a condom, the older Nick goes to the condom store, Eric masturbates into a condom, etc. I already wrote an entry about condoms, but they continue to show up everywhere.