I found an interesting 3D application for the interactive whiteboard. The Edusim is a 3D interactive virtual educational environment built on open source Croquet. The Edusim provides a powerful way to engage students by bringing a 3D immersive environment that allows the direct manipulation of the 3D virtual learning objects directly from the whiteboard. I think Edusim is fun, engaging, and highly interactive. The Edusim site offers five different applications (Intro World, Water World, Mars World, Forest World, and Math World) free for download for both Windows and Mac platforms. However, the user must have an interactive whiteboard in order to run these applications. Also, the site provides four Greenbush Resource Packs that can be integrated into the classroom.