There are many brands and models of interactive whiteboards to choose from for classrooms. Key brands include Mimio, Hitachi, Smart Technologies, PolyVision, Promethean, and Panasonic. Boards vary in size from 62 to 110 inches and features, like bundled software. Teachers can use boards for lessons, games, and polling students. Schools should consider size, features, and compatibility with other technology when selecting a board.