The Whiteboard Blog, has been one of my go-to places for information about interactive whiteboards.
Today, Danny published a new post that every teacher new to using interactive whiteboards should bookmark. Interactive Whiteboard #101: A Short Primer offers information that can be used by teachers who have Promethean, SMART, Mimio, and Easiteach interactive whiteboards. A few highlights from the post; Danny recommends having a Dropbox account and a large USB stick, he refers readers to some free resources for all boards, and explains the basics of using IWBs.
If you're new to using IWBs, check out Danny Nicholson's Interactive Whiteboard #101.