The third season premiere of Mad Men premiere on AMC in August.
With the show notoriously mum about spoilers, all we can report is that series creator Matthew Weiner has simply said the season will focus on chracters adjusting to change. (Such as a new baby for Betty and Don Draper.)
Here's a promo for season three of Mad Men:
[video url="/videos/mad-men-season-3-promo/" title="Mad Men Season 3 Promo"][/video]