1. A computer implemented method of characterizing a textual corpus state comprising: selecting a set of initial text publishers comprising at least one text publisher; defining a textual corpus comprising at least one textual output from a text publisher of the selected set of initial publishers; and deriving a characterized textual corpus state comprising: a set of word characterizations; each word characterization comprising: a word and; an associated word frequency of occurrence value within the defined textual corpus; and a set of word pair characterizations; each word pair characterization comprising: a word pair, each word of the word pair being a member of the set of word characterizations, and; a first associated word pair frequency of co-occurrence value within a first defined text length of the defined textual corpus.