1. A computer-implemented method, comprising: tracking search activities of search engine users over a plurality of index-type search engines to generate search activity data, said search activity data identifying at least search queries submitted by search engine users to locate and access a particular destination, wherein each of the search engine users interacts with a search results page of the index-type search engine to view search results, and wherein each of the plurality of search engines maintains its own proprietary index obtained by crawling web sites for building a unique database for generating search results; programmatically analyzing search activity data to generate statistical data regarding said search queries used to locate and access the particular destination, said statistical data encompassing search activities over the plurality of index-type search engines, wherein said programmatically analyzing is performed by a computer system having a processor and memory; and automatically incorporating the statistical data into a search result ranking process of a particular index-type search engine such that a search result ranking assigned by the particular index-type search engine to the particular destination is dependent upon searches conducted via at least one other index-type search engine.