HI Steve. There are websites that cover some individual neighborhoods, but there's no website that has a collection of neighborhood video across the nation. I am sure someone has thought of that before, but there are some privacy issues that may prevent implementation of the idea. Lots of people would probably not agree to have their pictures on the web and it's just a lawsuit waiting to happen.
Below are a few links that I found just by googling "neighborhood videos"
I have not looked at this sites myself.