suggested reading:
James Clifford (1981) ‘On ethnographic surrealism’: online here
Seth Giddings (2009) ‘Events and collusions: a glossary for the microethnography of videogames’. Games and Culture 4(2). Online here.
Catherine Russell (1999) Experimental Ethnography: the work of film in the age of video. Durham: Duke University Press.

See the slides below for more references

suggested viewing:
Seth Giddings (2011) ‘Monsters, mini-games, and Mr Happy: a video essay on virtual and actual play’, Audio-Visual: a journal of academic video. Issue 3: online here
Sarah Pink (2014) ‘Doing sensory ethnography’, https://www.youtube.com/watch?v=ON7hfORQUio#t=714

links:

Sensory Ethnography Lab, Harvard University
Anne Galloway: Towards fantastic ethnography and speculative design
Digital Ethnography Research Centre (RMIT)