The beginning sequence of a rainy night closing in on a building may be a reference to the opening sequence of the show Aqua Teen Hunger Force, and Dr. Weird's laboratory.
The book Malory is reading is "Greenmantle" by John Buchan, which is one inspiration Adam Reed noted for the character of Archer.
In the background as Pam is putting up the ISIS "Fraternization Policy", numerous other bulletins can be seen, including "Free Kitten: I'm Kitty-Litter-ate!", "WWJD about the dirty dishes in the break room!" and "Krieger Improv: The Science of Funny".
When Trinette is seen in the park she says the baby's dad knows Krav Maga. She is implying that the baby is Archer's, setting up a story arc for Season 2.
Archer's gunshot scars from Lana shooting him in the foot twice (first time in Skorpio; second time, in subsequent episode, Skytanic) can be seen as he is being held prisoner.
Cyril is acting out a scene from Full Metal Jacket when he is in the bathroom stall loading his gun.
When Lana agrees to have sex with Pam, she says she is going to pretend Pam is Alex Karras. Karras was a defensive tackle for the Detroit Lions in the 1960s and '70s, but is probably best remembered as the father on the sitcom Webster.
Lana tells the men to deliberately make their lies about having sex with her as nasty as possible. Brett claims Lana gave him a Gene Hathaway, which is a sex act where a women orgasms on a man's chest.
Uta luring in Archer with the line, "Help, my baby is choking!" is reminiscent of a scene from the second season opener of FX's Sons of Anarchy, where Gemma Teller is lured to a van in the same manner.