Civil War blogging doesn't get any better than the recent serial entries by Mark Grimsley (at Civil Warriors) on the intriguing process of updating his (and Brooks Simpson's) Gettysburg battlefield guide. See part 1 of "Letting the Ground Argue" here. Part two here. It's a real treat to read a working historian's musings from the field. The exercise imbues an inherently casual medium with a unique and powerful value. Bison Books should consider publishing links to these the making of entries.