More and more flash sites offers navigation using webcam. It must be right to say that it does not work very well for practical reasons, and you will feel quite dumb – waving your head right to left… But one thing is sure, we are going to see more and more none-mouse navigation in future, and there are several studies beleieving we are going to a mouse-free world…. And of course – it is quite cool!
This is a nice example of webcam navigation: Publicis & Hal Riney (also FWA awarded)

There is also a lot of campaign sites using the webcam to interact with the user, either taking photos to implement in the campaign or using the webcam in a more interactive way. Using the same principles as for navigation there has been made several cool sites. This is quite simple, but is one of my favourites (bases on a TV ad):  Solo Super