The "In Memory of DC Gustafson " at the end of the episode referred to Gustav Gustafson, who was the Leadman for the first two seasons of the show. Gustav was apparently a close friend of Sarah Michelle Gellar, and died during filming of the series at age 41, after fighting cancer and AIDS.
The banner Giles hangs above the counter of the Magic Box reads: "Don't Forget Winter Solstice, Hanukkah, Christmas, Kwanzaa & Gurnenthar's Ascendance Are Coming!"
In Doppelgangland (1999), Willow becomes upset when she finds out Anya's plans and takes back her chicken's feet. Here, Anya and Willow have a fight that starts out over chicken's feet.
This was the first episode directed by Marti Noxon. Of the experience, she says "It was thrilling and it was terrifying. I thought I was going to bolt the whole time." She will do the same again for Forever (2001).
This episode depicts a vampire variation of a crack house, in which humans allow vampires to partially feed upon them in exchange for the "high" the experience provides humans; Sunnydale's seamier side would receive more attention in the form of magic drug dealer Rack and his operations in Season Six. An even more extreme version is seen in Los Angeles in Release (2003), where humans get "high" on drugs and then allow vampires to partially feed upon them, heightening the effect for both humans and vampires.