Ok, now this is seriously a cool idea for a website.
Publicis & Hal Riney are a design firm in the San Francisco Bay Area that go way back. They recently updated their website to include some pretty cool motion graphics.
But more importantly than that, you can navigate the entire site via webcam. You can swipe your hands that any of the cardinal directions of the screen and the website will move you along.
The work is decent, and the mouse version is severely lacking (mostly because they are obsessed with mouseovers to reveal navigational info... ick) but navigating the webcam version is more fun than I've ever had navigating a website with a mouse. You should check it out if you fancy flailing around your arms for a good 15 minutes:
http://www.hrp.com/
Emily Gobeille and Theo Watson (both Parsons Communication Design + Technology Alumni) - FUNKY FOREST
Emily and Theo worked collaboratively to create the interactive installation, 'Funky Forest' which premiered at the 2007 Cinekid festival in the Netherlands. 'Funky Forest' is an interactive ecosystem where children create trees with their body and then divert the water flowing from the waterfall to the trees to keep them alive. The health of the trees contributes to the overall health of the forest and the types of creatures that inhabit it. The piece was executed using openFrameworks.
See FUNKY FOREST and more of Emily's work at: www.zanyparade.com
Theo's work can be found at: www.muonics.net