As I investigate stuff, I always mention it here. I don't always (okay, even usually) spell out the specifics of what I pick up, I just incorporate what I learn.
It's going to be like that this time.
George Kelly hipped me to From Cool to Passé: Identity Signaling and Product Domains, which gives an overview of research on how product trends come and go. Seems part of the reason they come is that they identify in-groups in various ways...from common expressions of style and taste to the ability to acquire or maintain the product/indicator.
Interesting. Possibly useful.
I've already downloaded a copy of the paper the article is based on.
Delicious
Digg
Reddit
Newsvine
Furl
Google
Yahoo