People knock Webvan around but the founder (Mick Mountz), 10 years after that debacle, founded http://www.kivasystems.com/ where instead of conveyor belts (Webvan) they use robots for managing a warehouse. Seriously cool robotics. Check out the videos on their site.

Kiva Systems has gone from strength to strength and is now used by Zappos, Wallgreens and others (http://en.wikipedia.org/wiki/Kiva_Systems)