ParaView is an open-source graphical user interface for VTK with additional functionality including the capability to perform rendering in parallel and a client-server architecture enabling visualization and analysis to be performed on a server while being viewed and driven from a client. ParaView, like VTK, is open-sourced under a BSD license and its development is overseen by the commercial entity, Kitware, Inc. ParaView is multi-platform, extensible via its plugin architecture, and natively supports many common data analysis tasks and data formats. As it builds upon VTK, any VTK functionality can in principle be invoked. In practice not all VTK functionality is exposed by default but can easily be exposed or extended via the plugin architecture previously mentioned and discussed in more detail below. Exposing VTK functionality is as easy as writing a short XML file. In this talk I present the process of plugging into ParaView to do visualization and analysis of terabytes of data in real time.