LTERmaps is an internet interface to LTER site base data.  The application uses internet mapping software to provide access to site locations, boundaries, and Trends data tables.  Several approaches were tried by the inter-site working group including off the shelf internet mapping applications, Google Maps and Google Earth.  The poster will highlight the process of collecting the data for the project, the value of video conference calls during the project, and the types of data configurations tried, and the pros and cons of the different approaches.