Electronic whiteboard, a great resource

For me the best teaching tool is the electronic whiteboard, I have been using it since five years ago. That tool gives to the classroom another dimension, we have a big window to show a technical process with a flash animation, how a hard disk work (for instance) with a Youtube video, pictures, games, we have everythings at a click.
I can leave others tools but electronic whiteboard is a fix resource at my classroom.