If it’s Sunday night, it’s Mad Men water cooler time on Twitter. “Betty Draper” is trending. Here’s why:

https://twitter.com/#!/iamMattBurch/status/186638095549071361

https://twitter.com/#!/venus_ice/status/186643394989260800

https://twitter.com/#!/lbanks6/status/186643359358648320

https://twitter.com/#!/sthewlett/status/186643336898166784

https://twitter.com/#!/EliseSuzanneSG/status/186643472172859393

https://twitter.com/#!/desvelos/status/186642870206341120

https://twitter.com/#!/JefTek/status/186643606285729792

https://twitter.com/#!/Social_Chef/status/186642412872019968