The Center for History and New Media's Scholarship in the Age of Abundance: Enhancing Historical Research with Text-Mining and Analysis Tools project has been awarded a two-year grant from the National Endowment for the Humanities.
Here's an excerpt from "Enhancing Historical Research with Text-Mining and Analysis Tools":
We will first conduct a survey of historians to examine closely their use of digital resources and prospect for particularly helpful uses of digital technology. We will then explore three main areas where text mining might help in the research process: locating documents of interest in the sea of texts online; extracting and synthesizing information from these texts; and analyzing large-scale patterns across these texts. A focus group of historians will be used to assess the efficacy of different methods of text mining and analysis in real-world research situations in order to offer recommendations, and even some tools, for the most promising approaches.