A computer implemented method for characterizing a bounding web site relevant to a target web site 19, wherein the field web sites related to {TAIL ~ the target web site} are automatically identified based on comparison of {HEAD ~ a content} of the target web site to a content of potential field web sites 
A computer implemented method for characterizing a bounding web site relevant to a target web site 19 , wherein the field web sites related to { TAIL ~ the target web site } are automatically identified based on comparison of { HEAD ~ a content } of the target web site to a content of potential field web sites
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