In the opening shot, as the camera pans through the warehouse, one of the first items seen is one of the virtual reality pods from The Gamekeeper (1998).
This is the second episode to feature the Sam and Jack love theme, the first being when Daniel went through the mirror for the first time in There But for the Grace of God (1998).
First appearance of the "Rod of Anguish" (also known as a pain stick). It is used on General Hammond and is a common tool of torture used by the Goa'uld.