Local History and Google Projects

I'm always fascinated by the local history projects that make the news. Doreen Carvajal's article "And Now, via Google, Time Travel Through the Streets of Segovia" New York Time 15 Jan 2013  http://rendezvous.blogs.nytimes.com/2013/01/15/and-now-via-google-time-travel-through-the-streets-of-segovia/?smid=pl-share  is a perfect example of the intersection of genealogy, local history, travel, and technology. But more than that, the article provides a glimpse of the many end uses for all that research. The possibilities are endless.