I've just been watching the first two parts of this fascinating BBC documentary - the History of Now: The Story Of The Noughties. At first I thought it was just going to be a round up of the decade - the sort of thing you get on New Year's Eve. But it turned out to be much more. It's more like a popular introduction to sociology - picking out themes and trends of the decade.
The first part focus on how age has become such a watershed in our culture. The second one looks at class and concludes that though it appears that the barriers are disappearing in fact social mobility has got a lot harder. It also gives the new definition of social class that emerged in the last decade - postcodes. I've been exploring this site where you can put in a postcode and get quite an accurate description of the people that live there. Go on have a go.
I haven't watched the third part yet but the trailer said that it was going to be about globalisation.