Yes, it is an extension of memory, but it's not new. Encyclopedias have served that role for centuries. The process is simply quicker now.<p>As it continues to accelerate (perhaps eventually becoming directly integrated into our thought processes via some kind of brain/machine interface), the distinction between "stored in your brain" and "stored in the computer/internet/etc" will become ever more blurred.<p>Perhaps even more excitingly, there's no reason why you should have such a distinction between "computers/networks" and "human brains". Via mechanisms such as Twitter and other instant social messaging, I also have some level of access to the information stored in your brain. Eventually, we might find that the whole setup of billions of brains plugged into each other and into billions of data-rich computers gives birth to some emergent process or another... potentially scary, but fascinating.