Helps cut through the clutter for folks, like me, who are less than great at searching.... http://www.sweetsearch.com/search.html?q=Student+Interactives The list shows a ton of interactive websites. Like being able to have your child work with 3D solid shape manipulatives. Very cool. Here is one I liked that was on the list... http://www.learner.org/interactives/geometry/about.html