Provided is a single repository for capturing, connecting, sharing, and visualizing information based on a geographic location, for example. Detailed information can be dynamically rendered as a function of a user parameter, which can include a user demographic, a user profile, and a user preference...http://www.google.com.hk/patents/US20070210937?utm_source=gb-gplus-share專利 US20070210937 - DYNAMIC RENDERING OF MAP INFORMATION