A University professor is making study of the relationships people have with their iPods.

Dr Michael Bull, a lecturer in media and culture at the University of Sussex, is an expert on the social impact of personal stereo devices. He is currently examining the ways in which people interact with their iPods.

Bull has requested that Macworld readers willing to take part in this research project should contact him.

He would like to know what impact the iPod has had on the way people listen to their music, how that music is selected, and how and where the iPod is used.

His study of the effects of the Walkman on society are documented in his book Sounding Out The City. It was described by The Guardian as being a "fascinating phenomenology of the personal stereo".

The findings of Bull's research into the iPod will be included in his next book, due to be published next year.