Veronica (Kristen Bell) telling Vinnie (Ken Marino), "This isn't 'Nam. This is bowling. There are rules," is a reference to the The Big Lebowski (1998), which she watched with Duncan (Teddy Dunn) earlier in the season.
The Tabloid Diaries uses actual wedding photos of Lisa Rinna and Harry Hamlin
Aaron Echolls' (Harry Hamlin) comment to Kendall (Charisma Carpenter), "Quid Pro Quo, Mrs. C. Quid Pro Quo," is a variation of the line spoken by serial killer Hannibal Lector in The Silence of the Lambs (1991), when he is asked for assistance in an FBI case. Aaron proceeds to mimic Hannibal's teeth sucking act.
TV Line's Michael Ausiello has a brief cameo as the man who is talked out of his underwear in the scene taking place at Java the Hut.