Public speakers can use a variety of powerful software tools for creating and displaying high-quality visual aids. These programs include the familiar Microsoft PowerPoint and its Apple counterpart, Keynote. In addition to these desktop applications, several Web-based presentation programs, such as Prezi (www.prezi.com), SlideRocket (www.sliderocket.com), and Zoho Show (www.zoho.com), provide some of the same basic features. Preloaded templates provide expert guidelines for font, color, and background combinations, or you can compose customized designs. Multimedia displays may be produced by importing photos, audio, and video into your displays.