Ordinary Whiteboards for presentations in classrooms, offices and technical areas, such as - Magnetic, Revolving, Coated Steel, Vitreous Enamel etc ...
The traditional Flipcharts for when you want a flexible and easy to transport mechanism for seminars and idea bashing
Copyboards or Electronic Whiteboards with a built-in printer, when you need to be able to give a copy of your presentation to your audience
Interactive Whiteboards with a touch sensitive screen when connected to a PC and a projector allow you to do a presentation on a GIANT monitor: the Screen of the Interactive Whiteboard