So here's a cool thing (via boing²) - Nat'l Geographic's got a webcam running at Pete's Pond, in a wildlife refuge in Botswana. I find this strangely compelling, even though there's nothing happening (it's, I think, 2am there now). Something about sitting at my desk and listening to insect noises live from another continent. Altho every once in a while there's sounds like something wandering or splashing around just out of camera view. So maybe what's interesting is the chance that something might happen.
Note: they're using RealPlayer so you might have to go and download the freebie version if you don't already have it.