Foucault and ethnography...again

This again. 
 
I threw this out a while ago and didn't really get much back, so I thought
I'd try again.   
 
can anyone direct me to anything good and recent.... or maybe a whole bunch
of good recent stuff..... on Foucault and ethnographic practice.  What
aspects of his work do ethnographers emphasize when they talk about
Foucault's relevance to ethnographic study?  More impotantly, what have
ethnographic researchers in response to Foucault's influence on social
science approaches?   
 
Hmmmm....  any ideas? 

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