The Web holds about a trillion pages. The human brain holds about 100 billion neurons.
Each biological neuron sprouts synaptic links to thousands of other neurons, while each Web page on average links to 60 other pages. That adds up to a trillion ‘synapses’ between the static pages on the Web. The human brain has about 100 times that number of links — but brains are not doubling in size every few years. The global machine is.
A pretty mind blowing thought… Soon though we will learn a great deal more about the exact number of Web pages out there. A group called the World Wide Web Foundation has received a $1 million grant from Google to investigate the question.
Read more here.