In the episode "News Night 2.0", Will states that Neelamani Sampat means "blue jewel". In this episode we see that Neil's hacker handle is *Blue_Jewel*.
MacKenzie says "Gather Yee rosebuds" which is the same thing Donna Moss says to Josh Lyman during an episode of The West Wing
Don's "almost Shakespeare" quote was: "To do a little wrong, to do a big right." The correct quote is: "To do a great right, do a little wrong". It's from Act 4 of "The Merchant of Venice".
John Gallagher, Jr's character, Jim Harper, tells the woman in the boutique that her dress "screams Tonys." Gallagher won a Tony award for Best Featured Actor in a Musical in 2007 for the musical Spring Awakening in his role as Moritz.
Lindsey Kraft appears in this episode, she would go on to star in "Grace and Frankie," which also starred Jane Fonda and Sam Waterson.