Cryptogasm has found thousands of unsecured, publicly accessible webcams via Google. Lots of them are doggie day cares, some are pointed at public spaces, some are at work places and quite a few are of private residences. He’s aggregated them all, excepts ones that are pointed at children’s rooms, on a giant page.
You can also filter them by location. Here’s Oregon.
You can read more about it in this post, and the FAQ.
This reminds me of a thread from the William Gibson forum a few years ago, where someone discovered a publicly accessible remotely controllable webcam pointed at someone’s office. The forum poster tried, unsuccessfully, to communicate with the guy.