I am admittedly bad at finding links that aren't already posted here... I thought this person brought up some of the key points we have been discussing concerning where digital ethnography can take place in relation to traditional ethnographic terminology... specifically, defining a 'field site'... if this link works...
"n this article, we use digital technologies (the Subcam and Webdiver) to capture, share and analyze collectively specific user experience. We examine the transition between 'outside' and 'inside' when people come home, and the steps needed to build the 'being-at-home' feeling" (from Abstract)
ABSTRACT In this review essay, the academic merits of three
anthropological blogs ("Savage Minds," "Zero Anthropology" [formerly
"Open Anthropology"], and the official blog of the American
Anthropological Association) are considered.