Directly from the cricut website:
The only limit: your imagination.
Welcome to a whole new way to create. Cricut Craft Room™ is a fun, easy-to-use, and timesaving online design tool that lets you experiment, explore, and design in ways never before possible. And it’s free. Plus, just for starting your account, you’ll automatically receive Cricut Craft Room™ Basics, a collection of digital fonts and shapes.
The Cricut Craft Room has officially launched and is available for FREE!
What is the Cricut Craft Room?
It is a design tool that lets you design with images from the Cricut cartridges (including Imagine ones) and images on the Craft Room itself. Currently, there is a free font and shape set of images, called Cricut Craft Room Basics and that's available for everyone. You will still need to own the cartridges to cut out your design, though. There is a linking feature so you can cut more easily. You need an internet connection to use the Craft Room. But there is an application that downloads to your computer and once that happens, you will always want to launch using your application on your computer, rather than the website.
Features of the Cricut Craft Room:
Free to Use
Access online from anywhere, any time
Easy to Use Program
Design on a Big Screen
View and Design with all Cricut Cartridges
Search easily to find the right images
Digitally stores all your cartridges and projects
Windows and Mac compatible
Explore exclusive online content
Cuts with any Cricut Machine
Go to http://www.cricut.com/craftroom/default.html#introduction and try it out yourself now!! :)
I've been playing and LOVE it!