Shaw is officially the nation’s second bloggiest neighborhood. That’s the pronouncement from outside.in, a Web site which tracks local blogs, news and events in almost every American city. They combined a host of statistics including “total number of posts, total number of local bloggers, number of comments and Technorati ranking for the bloggers” and found the central D.C. ‘hood flush with blogs. The area’s diverse population, encroaching gentrification and long history provide lots of fodder…