3D inversion of IP data provides a better result than 2D inversion. These case studies demonstrate the improvement in depth of investigation that solving the inversion as a 3D problem provides, and the reduction of artifacts caused by the 3D nature of the sources seen in the deeper parts of the 2D inversion solutions. The use of a visualizer to report results is illustrated. A significant problem for interpreters wanting 3D inversion solutions is the time required to solve the inversion problem on typical desktop computers. To address this, the UBC 3D algorithm has been re-coded to run on a parallelized Linux cluster. Practical solution times have been achieved.