9. A computer storage medium having computer-executable instructions for performing steps comprising: (a) determining t-he a cumulative density of each of a plurality of search engine queries, wherein the plurality of search engine queries include an input query and a plurality of stored queries, and wherein the density of each of the plurality of search engine queries is the frequency of each of the search engine queries in comparison to the combined number of search engine queries during each discrete time period of a plurality of discrete time periods, the cumulative density for each of the search engine queries being the density of each of the search engine queries over all discrete time periods in the plurality of time periods; (b) representing the query density data determined in said step (a) as respective bit strings, one bit string for each of the plurality of search engine queries; (c) selecting one or more of the plurality of search engine queries having a correlation coefficient above a first threshold level with respect to a reference search engine the input query of the plurality of search engine queries; (d) modifying the one or more queries selected in said step (c) to include a linking association in memory with the input; and (e) presenting the search engine queries, having the correlation coefficient above the first threshold level, to a user.
9. A computer storage medium having computer-executable instructions for performing steps comprising: (a) determining t-he a cumulative density of each of a plurality of search engine queries, wherein the plurality of search engine queries include an input query and a plurality of stored queries, and wherein the density of each of the plurality of search engine queries is the frequency of each of the search engine queries in comparison to the combined number of search engine queries during each discrete time period of a plurality of discrete time periods, the cumulative density for each of the search engine queries being the density of each of the search engine queries over all discrete time periods in the plurality of time periods; (b) representing the query density data determined in said step (a) as respective bit strings, one bit string for each of the plurality of search engine queries; (c) selecting one or more of the plurality of search engine queries having a correlation coefficient above a first threshold level with respect to a reference search engine the input query of the plurality of search engine queries; (d) modifying the one or more queries selected in said step (c) to include a linking association in memory with the input; and (e) presenting the search engine queries, having the correlation coefficient above the first threshold level, to a user. 14. The computer storage medium having computer-executable instructions as recited in claim 9 , further comprising the step of calculating a correlation coefficient between the reference search engine input query and the one or more stored search engine queries, the correlation coefficient indicating the degree of semantic relationship between the ˜ input and one or more search engine queries.