In the opening scene, it shows Phoebe and Mike reading Weddings In Style magazine. On the cover is Megan Mulally from Will and Grace.
At the beginning when they are talking about weddings, Ross jokingly says his next one will be on a beach at sunset. As it turned out that is how Matt LaBlanc got married a couple of years after that.
Rachel mentions Claire Danes, who appeared in the 1990s film adaptation of Romeo + Juliet (1996) alongside Paul Rudd (Mike).
This is the second time Ross and Rachel do not share any scenes with the rest of the gang, the first time was "The One With the Truth About London" (S7E16).
The 6 pack on Joey's fridge is Smirnoff Ice.