A SmartBoard is an interactive whiteboard that allows users to input information by touch. A projector is used to display a computer's video output on the interactive witeboard, which then acts as a large touch screen.

Touch, Write, Save - a two minute video tutorial
Orienting Your SmartBoard
SMART Exchange - lesson plans and resources

Krismorahan's Favorite Links on smartboard from Diigo

Forty-Six Interesting Ways to use your Interactive Whiteboard in the Classroom