We undeniably live in an information age-as, indeed, did those who lived before us. After all, as the cultural historian Robert Darnton pointed out: 'every age was an age of information, each in its own way' (Darnton 2000: 1). Darnton was referring to the news media, but his insight surely also applies to the sciences. The practices of acquiring, storing, labeling, organizing, retrieving, mobilizing, and integrating data about the natural world has always been an enabling aspect of scientific work. Natural history and its descendant discipline of biological taxonomy are prime examples of sciences dedicated to creating and managing systems of ordering data. In some sense, the idea of biological taxonomy as an information science is commonplace. Perhaps it is because of its self-evidence that the information science perspective on taxonomy has not been a major theme in the history and philosophy of science. The botanist Vernon Heywood once pointed out that historians of biology, in their 'preoccupation with the development of the sciences of botany and zoology … [have] diverted attention from the role of taxonomy as an information science' (Heywood 1985: 11). More specifically, he argued that historians had failed Catherine Kendig and Joeri Witteveen have contributed equally to this paper and are listed in alphabetical order.