Sirc is an independent, non-profit organization that tracks social trends in the UK. As such they're amassing a valuable, free to access library of articled on a variety of ethnographic and sociological topics.

Many of their reports have been comissioned by brands with the proviso that they are allowed into the public domain. Some examples :

Happy Homes - what makes a good home?

The Noughties - The decade of diversity

Evolution, Alienation and Gossip - the role of mobile telecommunications in the 21st century.

The Smell Report
The psychology and anthropology of scent

Mirror, Mirror...
A summary of research findings on body image