2006 Annual Report 4d.Progress report. This final report serves to document research conducted under a Specific Cooperative Agreement between ARS and the University of Mississippi's Department of Computer and Information Science. Additional details of research can be found in the report for the inhouse project 6408-13000-017-00D, Integrated Assessment and Analysis of Physical Landscape Processes that Impact the Management of Agricultural Watersheds. Advanced watershed planning computer technology is needed by action agencies such as the Natural Resources Conservation Service (NRCS) as a tool used to develop watershed management plans. Computer visualization and model distribution technology were developed for the AGNPS and CONCEPTS models. Capabilities needed by AGNPS and CONCEPTS model users were developed to visually optimize the results from complex watershed and channel system simulations. Internet WEB-based distribution technology was developed to easily transfer the models to users. A design for the AGNPS WEB site was developed for the distribution of the watershed management technology. Approaches to remotely display spatial data sets for the CONCEPTS model were evaluated and developed. A basic web-based interface was developed to display and modify data sets comprised of aerial photos, digitized stream networks, and sites with detailed measurements of channel properties. The use of an interactive web-based interface for CONCEPTS provides users, such as the US Army Corps of Engineers, US Geological Survey, US Environmental Protection Agency, and NRCS, access to the latest technology in a simplified format for evaluation of stream restoration management practices.