The first live web cam designed to prevent genocidal rages and popped aneurysms -- the Israel Antiquities Authority has a live web cam set up so people can watch the excavations in Jerusalem, here. It seems to work best in IE, but Firefox handles it, too.
All that excitement over the drying of paint.
There's also a resource-filled page with all the background you could want, here.
Cool, a great idea.
An excellent idea.