There are many webcams on the Internet these day. Some of them provide a web interface for controlling them. With such interfaces you can usually adjust a number of parameters of the camera, and sometimes evey move(!) it. Such web interfaces can be intenationally or unintantionally left open for the general public, and when this happens, there is only a so much time until one of the web crawlers finds it.
Google, once again, can help locating these pages, with its “inurl:” search argument. All one needs to do is search for ‘inurl:”ViewerFrame?Mode=”‘
Picked up here.
Update (9 Jan 2005 20:32): The story went to Slashdot with comments to the post suggesting more ways to find webcams.