What next? Mashups

Combining data with Google Maps -- a new Internet phenomenon, it seems. I'm a big fan of mapping historical data, especially for lectures. But I'm not really versed enough to do it effortlessly, so I often just can't find the time. Now here's a new twist.

Jane Gordon, "Mapping the Invisible City Outside Their Walls," New York Times, 3 May 2006, A25.