Where can I find a good explanation of the ethnographic method of research?

Answer 1

Ethnography (from the Greek ethnos = nation and graphein = writing) refers to the qualitative description of human social phenomena, based on fieldwork. Ethnography is a holistic research method founded in the idea that a system's properties cannot necessarily be accurately understood independently of each other. The genre has both formal and historical connections to travel writing and colonial office reports. Several academic traditions, in particular the constructivist and relativist paradigms, claim ethnography as a valid research method.
See A SYNTHESIS OF ETHNOGRAPHIC RESEARCH in
http://www-rcf.usc.edu/~genzuk/Ethnographic_Research.html

Answer 2

Two books which give an excellent introduction to the ethnographic research method are those by Geertz (1973) and Van Maanen (1988). Both are written by anthropologists. Zuboff's (1988) book is regarded by many as the best and most insightful book that has ever been written about the impact of IT on organizations.

Answer 3

There is an Institute for ethographic research.
The second site is a bit easier to understand.