The internet is made of computers connected together, exchanging information via electrical signals. The same is true for our brain. A neuron communicates with another neuron by sending electrical impulses down its axons (like a wire & plug) to another neuron's dentrites (like a socket). Unlike the computer, which sends information in code that contains diverse types of information, the neuron sends information by changing its frequency in transmission. For instance: if I were to hit my hand on the desk with little force, neurons would fire signals at a constant intensity - with relatively low frequency. Comparatively, if I were to hit my hand with a sledgehammer, then my neurons would fire signals with the same intensity - but with a very high frequency. Anyways, thats besides the point. The bottom line is that the brain sends electrical signals throughout its network of neurons much like the internet sends information through its network of computers.
How did our brains evolve? How did the internet evolve? What will the internet look like in the future? Our brain size is limited by our skull size - is there an upper limit for the internet? We have IQ scores for our minds - is there an IQ for the internet? Is Klout score analogous to IQ? Probably not, but I figure Id mention it anyway. Just for fun.
