An article in Slate by Brian Montopoli, City Wide Web - City "blog maps" enable point-and-click sightseeing, discusses the premise behind blog maps. His example, D.C. Metro Blog Map, a subway map of Washington DC which denotes "blogs" in thevacinity of Metro subway stops.

Might be interesting to so something similar with a school map. By moving the mouse over a school map, student and teacher blogs would pop up... [by way of...Smart Mobs]