LexiURL Searcher is a program to automatically download results from commercial search engines (currently Yahoo! and Live Search) via their permitted online process. It also contains many features to process the results for analysis purposes. The plan is to eventually replace LexiURL with LexiURL Searcher.
Some of the LexiURL Searcher features are quite powerful and are restricted from general users either becuase they may waste the time of search engines by submitting too many queries, or becuase they are critical for the Web Audit service provided by the Cybermetrics research group.