20. The computer-readable storage device of claim 17 , wherein the operations further comprise displaying a first document indication associated with the first document neuron, in response to being excited, wherein the first document indication is positioned relative to the plurality of word indications based on weight of each of the plurality of connections to the first document neuron.
20. The computer-readable storage device of claim 17 , wherein the operations further comprise displaying a first document indication associated with the first document neuron, in response to being excited, wherein the first document indication is positioned relative to the plurality of word indications based on weight of each of the plurality of connections to the first document neuron. 21. The computer-readable storage device of claim 20 , wherein the operations further comprise displaying a hyperlink associated with the first document indication.