The Google Docs Viewer allows you to email a link, place a link on your Web page or blog, or embed a stand-alone viewer to read PowerPoint, PDF, and TIFF image files directly in the browser. Right now, if you put a link to a PowerPoint presentation on a Web page, it has to be downloaded and opened with the PowerPoint software on the user's computers. And PDF and TIFF files will not open in a Web browser, either, and require software on the local computer to read these file formats.