Methods and systems for electronically tracking the progress of teams as they cover an assigned geographic area are described herein. A server computer establishes a coverage area, divides the coverage area into a plurality of regions, and assigns each region to a team. Each team carries a tracking device...http://www.google.com.au/patents/US7518505?utm_source=gb-gplus-sharePatent US7518505 - Electronically tracking a path history
