Hard drives are getting bigger and faster every year, but they're just barely keeping pace with the rate at which our data are expanding. A new service called Bitcasa wants to be the last hard drive you ever need, by offering seamless and infinite (infinite!) cloud-based storage for all of your data.

Backing up your data is always a compromise between resiliency and accessibility. LaCie's new CloudBox manages to seamlessly do both, which would be awesome if only it wasn't so ridiculously expensive.

The GoFlex Satellite from Seagate is the first portable hard drive to include an integrated battery pack plus Wi-Fi that lets you stream 500 gigs of whatever you want directly to your iPad or any other mobile device without plugging in any wires at all.

There's a physical limit to the number of magnetic bits that you can stuff onto a given area on a traditional hard drive, and we're pretty close to it right now. For hard drives to get bigger without getting, you know, bigger, we're going to have to get creative, and one research team has done this by taking hard drives into the third dimension.