A method and system for facilitating information exchange between individuals and entities interacting on a shared project are provided, and more particularly to a method and system for horizontal, i.e., non-hierarchical, participation in and/or contribution to a spreadsheet-based project. The method...http://www.google.com.hk/patents/US7430709?utm_source=gb-gplus-share專利 US7430709 - Method and system for facilitating information exchange
