While looking at some great SMART blogs tonight, I was excited to find that there's a "National Library of Virtual Manipulatives." NLVM from Utah State University is a massive library of over 100 virtual math manipulatives for grades Pre-K through 12th grade. These resources are also available for a free trial download or for purchasing. Find it at http://nlvm.usu.edu/ . Hmmmm, think I'll look for more SMART board math manipulatives!!