Modern Chalkboard is a wonderful free site for finding educational resources such as Smart Board files. These interactive lessons cover a wide range of topics from Math, to Science, and Social Studies. Right now this is a fairly new site and the majority of their resources are for
K-5th grade but more Smart Board resources are being added all the time.
I highly recommend checking out Modern Chalkboard by clicking here!!!
For more info check out Edshelf.
For my Pinterest board on Educational Resources click here.