TheBrain is an easy-to-use system for organizing information. It enables you to link files, documents, and Web pages across applications and network boundaries. TheBrain illustrates how information is related, provides a visual context for documents and data, and offers a framework for collaboration.

Clipped from Safari (http://www.thebrain.com/ ):

Containers versus Links 
Traditional information management systems use folders and focus on separating information—they force you to divide information into containers. Separating information in this way creates barriers between information and ignores the naturally occurring relationships inherent in the information. TheBrain takes the opposite approach—it enables you to link information into a network of logical associations. 

The Power of Association 
Traditional directory trees confine information to a strict hierarchical organization and are incapable of expressing the multi-layered relationships that exist in the real world. TheBrain is an associative information organization system—any piece of information can be linked to any other piece. The power of TheBrain lies in the flexibility of these links. You can quickly create structures of information that reflect the way you think about your information. Each item triggers related items, bringing relevant information together as you need it.  

Visualizing Information Flow 
Items in TheBrain are called "Thoughts," which can represent files, Web pages, or database records. TheBrain's display is organized around a Thought, surrounded by all its related Thoughts. Clicking on any Thought brings it to the center of the display, and the interface is automatically reconfigured to new related Thoughts. (Try it by clicking on TheBrain above—just click back to the Overview Thought to return here.) As you navigate through data, the information displayed on the screen is always related to the selected data. TheBrain lets you follow a train of Thought, flowing from one item to the next. 

Using TheBrain 
Using TheBrain is as simple as pointing and clicking. The interface lets you browse visually through its unique, animated display. Adding new information and integrating existing information is a simple drag and drop. Using TheBrain, anyone can create and share a context-rich information environment.

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