A pity that our practical assessment is also set in study week (next week) for I quite like this question (though it took me ages to pick) and I won't be giving it the time it deserves.
Brody, Florian. The Medium is the Memory.
Danziger, Kurt. Marking the Mind: A History of Memory. Cambridge: Cambridge University Press, 2008.
Van Den Boomen, Marianne et al (eds.) Digital material: Tracing new media in everyday life and technology. Amsterdam: Amsterdam University Press, 2009.