A couple of recent reviews in academic journals for our book Code/Space, interesting to get positive feedback. My good mate in Kentucky, Matt Zook's provided a review in Regional Studies, (Vol. 46(8)). While Peter Adey's review in the Journal of Transport Geography, (Vol. 26) opens by noting that "Code/Space is a pretty remarkable piece of scholarship. It works in a number of important ways to collate and develop the authors' research on software, the internet and communications over the last 15 years or so."
Also, you might be interested in a book review that I wrote on the The Culture of Diagram by John Bender and Michael Marrinan (Stanford University Press, 2010). The review has just come out in the latest edition of the journal Cartographica. I was rather critical of this particular book, arguing that "... their analysis suffered from drawing on such a narrow range of diagrammatic applications and that it offers a narrowly constrained empirical spatial and temporal sample of evidence. The result is a serious and scholarly book, but one in which genuinely novel insights are few."