A twofer for me, combining both linguistics and Jewish culture.
David Bernstein at Volokh links to a new survey of American Jewish speech and identity markers. It is hardly surprising that Yiddish is declining and Israeli Hebrew ascending, but there are oddities even in that. A small selection of Yiddish words is actually becoming more common.
I keep forgetting that most Jews I know are my own age. Most anythings that I know are my own age. My impressions of American Jewish culture is very much formed then, by Jewish Boomers from the northeast, with a secondary influence of Jews a generation older. It's good to bust out of that a bit.