First, this article is an interesting follow-up to my previous mother/father post. This woman looks at why her toddler has bonded more to her husband than to herself, and specifically at the idea that culture tells her it should be the other way around. I know, it sounds like I'm making an "it's all culture" argument, but the author is merely looking at forms of bonding and what our culture says "should" happen.
Then, a recent This American Life broadcast looks at the topic of mapping. The first two acts are also REALLY impressive and interesting sociological and psychological studies; one mapping cultural behavior of a neighborhood, the other looking at modern electronics and how their constant humming and buzzing, each with its own melodic tone, affects our mood.